Ministry of Land, Infrastructure, Transport and Tourism

National Institute for Land and Infrastructure Management

NILIM

Large-scale levee model experiment channel in which
a four-meter full-scale levee can be installed

Use of bollards to protect pedestrians

Sea iceconcentration

Sea ice conditions and vessel positions along the Northern Sea Routebased on satellite AIS data and sea ice concentration data from JAXA

Simulation of the impact evaluation of street trees
on ventilation paths using a 3D city modelResearch Institute that creates the society of the future2021
http://www.nilim.go.jp/

Mission of the National Institutefor Land and Infrastructure Management (NILIM)As the only national research organizationin the social infrastructure/housing field,
our goal is to use technology as the driving force
to create an attractive country and societythat are safer, more secure, and more vigorous,
both now and in the future.

NILIM research policy (excerpt)
Basic stance Participate in policy development of the Ministry of Land, Infrastructure, Transport and Tourism as atechnical specialist taking into account the administrative perspective among other aspects
 Return advanced, comprehensive technical capabilities cultivated by research activities to practical work
fields Connect to the creation of new policy by insight into the future image of national land/society andpromotion of technology development

Activities forming the basis
 Research and development that supports planning, drafting, and spreading the policy for land,
infrastructure, transport, and tourism (pp. 3–14)
 Advanced technical support for response to disasters/accidents and improvement of countermeasuretechniques (pp. 15–16)
 Support for improvement of the field technology of regional development bureaus (p. 17)
 Collection, analysis and management of data forming technical basis of policy formation, and return tosociety (p. 18)
Click here for thefull research policy. →01

Yokosuka Office

Asahi and Tachihara Offices

Personnel and Welfare Division
General Affairs Division

Deputy Director of the General Affairs Department
Senior Officer for Public Welfare
Senior Officer for Contract and National Property

Accounting Division
Head Officer for General Affairs

Research Coordinator for Digital Transformation of Infrastructure
Systems
Research Coordinator for Evaluation
Research Coordinator for Codes and Standards

Administrative Coordination Department

Research Facilities DivisionInternational Research Division
Senior Officer for Cyber Security andInformation
Administrative Division
Planning and Coordination Division
Technological Information Division
Cost Estimation System DivisionInternational Coordination Division
Wastewater System Division

River Department

Wastewater and Sludge Management
Division

River Division
Water Cycle Division
Large-scale Hydraulic Structure Division
Flood Disaster Prevention Division
Sabo Planning Division
Sabo Risk-Management Division

Research Coordinator for Sediment Disaster Prevention

Road Traffic Department

Road DivisionRoad Safety DivisionRoad Environment Division
Intelligent Transport Systems DivisionRoad Structures Department

Bridge and Structures Division

Building Department

Standards and Accreditation System Division

Research Managing Coordinator for Advanced Building Technology
Research Coordinator for Quality Control of Buildings
Research Coordinator for Disaster Mitigation of Buildings

Structural Standards Division
Fire Standards Division
Equipment Standards Division
Material and Component Standards Division
Evaluation System Division

Housing Department

Housing Planning Division
Housing Stock Management Division
Building Environment Division
Housing Production Division

Urban Planning Department

Urban Planning Division
Urban Facilities Division
Urban Disaster Mitigation Division
Urban Development Division

Coastal, Marine and Disaster Prevention Department

Port Planning Division
Port Systems Division
Port Facilities Division

Research Coordinator for Advanced Port Technology

Port Construction Systems andManagement Division
Airport Planning Division

Airport Department

Airport Facilities Division

Research Coordinator for Advanced Airport Technology

Airport Construction Systems Division

Information Platform Division
Construction Economics Division
Landscape and Ecology Division
Kumamoto Earthquake Recovery Division＊*Government office building established at thesite of Kyushu regional development bureau
Kumamoto reconstruction project office

NILIM personnel are also dispatched to the
Sediment Disaster Prevention Technology Centerat the Kinki Regional Development Bureau.

*See pages 23 and 24 for details of the research departments
and other information.

As of April 2021.

Introducing facilities andresearch departments, etc.

Maintenance Research Committee

Digital Transformation of Infrastructure
Systems Research Committee

Disaster Prevention and Reduction
Research Committee

Environment Research Committee

Climate Change Adaptation ResearchGroupConstruction and Maintenance Management
Division
Construction and Maintenance Systems
Division
Advanced Construction Technology Division

Asahi Office

Research Center for Infrastructure Management

Budget and employees

Port and Harbor Department

Research Coordinator for
Construction Management
Research Coordinator for Land
Management and Disaster
Prevention
Research Coordinator for
Advanced Information
Technology

Coastal Zone Systems Division

Yokosuka Office

Research Coordinator for Coastal and Marine Affairs
Research Coordinator for Coastal and Marine Disaster Prevention

Marine Environment and Emergency
Management Division
Coastal Disaster Prevention DivisionInternational expansion/
Public information activities

Research Coordinator for Housing Performance
Research Coordinator for Housing Information System

Beneficial use of field data

Foundation, Tunnel, and Substructures
Division
Pavement and Earthworks Division
Earthquake Disaster Management Division

Research Coordinator for Road Structures

Tachihara Office

Research Departments (11 departments + 1 center)Research Coordinator for Road Affairs
Research Coordinator for Road Disaster Prevention

Support for fieldtechnology improvement

Sabo Department

Coast Division

Asahi Office

Research Coordinator for River Structures
Research Coordinator for Integrated Water Disaster Management
Research Coordinator for Water Environment

Support for accident anddisaster response

Yokosuka
OfficeResearch Coordinator for Information and Construction Systems

Research Coordinator for Water Quality Control
Research Coordinator for Wastewater Energy Management andSystem Restoration

DeputyDirector-General
DeputyDirector-General
Executive Director
for Research Affairs
Executive Director
for Research Affairs

Planning Division
Research Administration and Evaluation
Division

Asahi OfficePlanning and Research Administration Department

Tachihara Office

Research and development

Head Officer
for General Affairs

Water Quality Control Department

DirectorGeneral

Asahi
OfficeAdministrative Departments(3)

General Affairs Department

Organization

Organization

02

Organization
Research and development
Support for accident anddisaster response
Support for fieldtechnology improvement
Beneficial use of field data
International expansion/
Public information activities
Budget and employees
Introducing facilities andresearch departments, etc.

03

Research and development that supports the planning, drafting, and
The main research themes of NILIM in FY 2021
1. Research to improve national resilience and protect the lives ・・・ 05 〜 08
and livelihoods of the people
2. Research to increase the productivity and growth potential
・・・ 09 〜 12of society
3. Research to support comfortable and secure living

・・・ 13 〜 14

P. 9 Development of a DX Data Center for thedigital transformation of construction processes

P. 10 Expansion of construction types and application
technologies for construction using ICT
P. 6 Research on strengthening of roadstructures against floods and heavy rain

P. 6 Research to eliminate areas without flood risk informationin small and medium-sized rivers
P.12 Improvement of the efficiency of seweragefacility management by promoting DX
P. 10 Research on promotion ofi-Construction in ports and harbors

P.12 Research on measures to improve theefficiency of the hinterland transportof international maritime containers
P. 8 Maintenance andmanagement of infrastructure
P.14 Visualization of environmental
values of coastal areas

P. 7 How do we stack and tie down containers toresist strong winds?

Organization

spreading of the policy for land, infrastructure, transport, and tourism

Research and development
Support for accident anddisaster response

P. 6 Efforts to clarify the mechanism of
sediment disasters

P.13 Promoting the use of 3D city models in urban planningand urban development

P.11 Improvement of the efficiency of maintenance andmanagement through the use of BIM models for
public rental housing stock
P. 7 Preparedness for medium- andlong-term power outages in housing

P.14 Regeneration of suburban housing complexes
to improve sustainability

Introducing facilities andresearch departments, etc.

P.14 Development of design and construction techniques
for mixed-structure buildings using new woody materials

Budget and employees

P. 7 Measures against strong winds for building
exterior materials and wooden roof trusses

International expansion/
Public information activities

P.11 Realization of automated drivingwith support from infrastructure

Beneficial use of field data

P.13 Regional invigoration through the support
for promoting the development of smart cities

Support for fieldtechnology improvement

P.13 Use of bollards to protect pedestrians waiting
at intersections

04

Disaster prevention and reduction, national resilience
become more severe and frequent due tothe effects of climate change.

 Infrastructure that was intensively

developed during and after the highgrowth period will become obsolete at thesame time in the future.

Levee breakage due to heavy rain in July, 2018

Damage to the seawall caused by the tidal waves
of Typhoon No. 15 (Faxai) in 2019

Support for accident anddisaster response

Three-year emergency measures for disaster prevention, disaster mitigation, and national resilience(FY 2018 to FY 2020)
In light of the July 2018 heavy rains, the government of Japan will implement emergency measures over a three-year
period, in addition to the existing measures.

Support for fieldtechnology improvement

 Examples of measures implemented
throughout Japan Examples of measures implemented by NILIM

Beneficial use of field data

Three years
to dateExample of reinforcement at the foot of slopes (Kuji River)

Construction of an experimental channel to enable experiments
using a full-scale embankment model (approximately four-meter high)International expansion/
Public information activities

Development and maintenance of a seismic monitoring system
for the entire infrastructure system
SensorContinuous
wireless
communication
Reception

Observation of the behavior of the entire system

Base station
Transmission

System installation on bridges (about 20 locations nationwide)

Budget and employees

Construction of evacuation routes in dense urban areasthat are extremely dangerous during earthquakes etc.

Example of sensor installation
on a bridge

Acceleration (m/s2)

Research and development

 In recent years, weather disasters have

Bridge girder: Vertical direction

Acceleration (m/s2)

Organization

1. Research to improve national resilience and protect the life andlivelihood of the people

Ground: Vertical direction

Acquisition of observation recordsof structural behavior

Introducing facilities andresearch departments, etc.

Five-year acceleration measures for disaster prevention, disaster mitigation, and national resilience(FY 2021 to FY 2025)
The next
five years

Further accelerate and deepen the measures implemented in the three-year emergency measures and implement
focused and intensive measures.
 Examples of measures implemented by NILIM
Research on strengthening of road structures against floods and heavy rain → P. 06
Source: Cabinet Secretariat website (https://www.cas.go.jp/jp/seisaku/kokudo_kyoujinka/index.html) (partially edited)05

Research on strengthening of road structures against floods and heavy rainThis study contributes to improving the reliability of the road network by proposing methods for designing andreinforcing road structures that are less vulnerable to flooding and heavy rainfall and methods for assessing the riskof large-scale slope failures.
<<Heavy rains in July 2020>>2

National Road 41, Gero City, Gifu

(Road Structures Department)

Research to eliminate areas without flood risk information in small and medium-sized rivers

River channel
configuration

Legend An urgent task is to eliminate areas without flood risk
information in the large number and length of small andmedium-sized rivers nationwide.

Depth of inundation
Less than 0.5 m
0.5 m to less than 3.0 m
3.0 m to less than 5.0 m
5.0 m to less than 10.0 m

Support for fieldtechnology improvement

This research is to develop a method for estimating flood inundation area based on LP data etc. and a method for examining
the impact of large amounts of sediment deposition in rivers during large-scale heavy rains and promote the elimination ofareas without flood risk information in the large number and length of small and medium-sized rivers nationwide.

Support for accident anddisaster response Research on risk assessment methods for the degree of impact onroad functions due to damage to road structures caused by rising
rivers and slope failure in road areas
 Research on design and reinforcement methods for roadstructures with a high risk of damage

Research and development

 Recent torrential rains, including the heavy rains of July 2020, haveoften caused scouring of road earthwork structures and bridgefoundations, resulting in the long-term loss of road functions.
 Loss of road functions due to the collapse of slopes far from theroad area also occurred.

Organization

1

10.0 m to less than 20.0 m* The method of estimating the amount of sediment inflow into a river
channel is developed jointly with the Sabo Department.

Reflect Changes without fine grain sediment deposition

Examples of estimating potential flooding areaof small and medium-sized rivers

Upper line of fine grain sediment deposition
Hydraulic experiments to understand the effects
of sediment deposition(River Department)

Efforts to clarify the mechanism of sediment disasters

This study clarifies the mechanism of new types of sediment disasters, such as sediment and flood damage andlandslide without rainfall, and contributes to more efficient and focused countermeasures against large-scale
sediment disasters.

 Erosion and deposition processes of debris flow or sediment laden
flow with a wide range of particle sizes distribution are clarified
through experiments, and a numerical simulation model is developed.

 Invented an investigation technique to identify slopes where
groundwater is concentrated.

Groundwater

Grasping the difference in erosion anddeposition amount by grain size using
a high-speed camera

Understanding the 3D structure of groundwater concentrationby comparing the electromagnetic survey results before and after rainfall(Sabo Department)

Introducing facilities andresearch departments, etc.

 Heavy rains are occurring frequently. Meanwhile, disasters occur
when there is no rain or after the rain has stopped and theweather has gotten better.
 Investigation techniques for groundwater-induced slope failure
are needed.

Budget and employees

 In recent years, sediment and flood damage has caused widespreaddeposition of large amounts of fine sediment and increased theseverity of damage.
 To promote countermeasures, a numerical simulation model that canaccurately predict the reach of sediment is necessary.

International expansion/
Public information activities

3

The river channel configuration is estimatedbased on a laser profiler.
Changes during fine grain sediment deposition

Beneficial use of field data

LP data

20.0 m or more

 Establishment of an inundation estimation method using aerial
laser profiling (LP) and other methods to quickly eliminate areas
without flood risk information in small and medium-sized rivers
 The impact of massive amount of sediment deposition* in theriver is reflected in the method of creating the flood hazard map.

06

Organization
Research and development
Support for accident anddisaster response
Support for fieldtechnology improvement
Beneficial use of field data
International expansion/
Public information activities
Budget and employees
Introducing facilities andresearch departments, etc.

07

4

Measures against high winds for building exterior materials and timber roof components

These measures will contribute to reducing the risk of damage in the event of a weather-related disaster bypromoting the development of wind-resistant designs through the development of specifications, testing, andevaluation methods for exterior materials etc. that improve wind-resistant performance.
 As a result of damage to exterior materials and timber roofs
caused by high winds during a typhoon, conditions thatsignificantly impede the continuity of residence andrestoration to the original state immediately after sustaining
damage became apparent.
 As abnormal weather conditions become more frequent,improving the wind resistance of these portions is an urgent
issue.
 Wind-resistant specifications and load testing andevaluation methods of joints etc. are developed for roof tiles,
front sashes, and timber roof components.
 These results are reflected in industry guidelines etc. as acomplement to the Building Standard Law of Japan. The
guidelines are then disseminated to the general public.

5

Load testing on roof tiles and timber roof components(Building Department)

How do we stack and tie down containers to resist strong winds?

Research on wind-resistant measures for containers using wind tunnel tests will contribute to the efficient andeffective advance measures to be implemented according to expected wind speeds and contribute to the rapid
resumption of port logistics after storms, such as typhoons.
 Typhoon No. 21 (Jebi) in 2018 and Typhoon No. 15 (Faxai) in
2019 caused the collapse of many containers at ports andharbors.
 It is important to prepare containers for typhoons and otherstrong winds in advance.

<Wind tunnel test using a container model> < Lashing examples > <Stacking examples>
LeewardWindward
May collapse toward
the windward In this study, wind tunnel tests are conducted using container
models with various numbers of levels, stacking methods, andlashing methods to quantitatively evaluate the wind resistance
performance of each.
 Appropriate wind resistance measures are proposed forcontainers according to expected wind speeds.

6

Vertically lashing

Rectangle

Horizontally lashing

Corner-cutting

Vertically andhorizontally lashing

Pyramid-type(Coastal, Marine and Disaster Prevention Department)

Preparedness for medium- and long-term power outages in housing

This study contributes to the enhancement of preparedness for medium- to long-term power outages in homes bydeveloping design goals for self-sustaining energy systems in home design, taking into account the continuation ofoccupancy during power outages.
 One of the ways to allow people to continue living in their homes in theevent of a power outage after a disaster is to use an independent
energy system (a system that combines solar power generation andstorage batteries).
 Houses are not designed with a goal of designing a system that takes
into account the continuation of residence during power outages.
Therefore, it is not possible to determine whether a system hasappropriate performance.
 Organization of the necessary use of power to continue living in a housein the event of a power outage
 Quantification of requirements for an independent energy system toenable continuation of residence Based on the above research results, design goals for an independent
energy system for the continuation of residence are proposed.

What are the requirementsthat the system shouldmeet to provide the power
needed for thecontinuation of residence?

Powercompany

Solar power
generation
panelsPower station

Use of power

Storage battery

What are necessary uses of power to enable people to continue living in their homes?

(Housing Department)

Infrastructure maintenance and management

This study contributes to the realization of more efficient and effective inspections and repair of infrastructures (civilengineering structures) by standardizing rational repair, reinforcement, and design methods and by utilizing newtechnologies, such as unmanned aerial vehicles.

 A simple and quick method is developed to check the reduction of
bearing capacity of airport pavement due to cavities caused by soilliquefaction based on the vertical acceleration of vibrating rollers
running on airport asphalt pavement.

Verticaloscillation

Running

STEP 1

STEP 3

STEP 4

STEP 5Asphalt concrete

Asphalt concrete

Asphalt concrete

Asphalt concrete

Asphalt concrete

Upper layer of the roadbed

Upper layer of the roadbed

Upper layer of the roadbed

Upper layer of the roadbed

Upper layer of the roadbed

Lower layer of the roadbed

Lower layer of the roadbed

Lower layer of the roadbed

Lower layer of the roadbed

Lower layer of the roadbed

Frequency (Hz)CavityCrack

Presence of a cavity

Frequency (Hz)An example of early deterioration mechanism of asphalt pavement

Development of an inspection and diagnosis systemfor port facilities using UAV and AI

 Development of a system for more efficient inspections anddiagnoses of port facilities by using image acquisition by UAV(unmanned aerial vehicle) and image processing by AI (artificial
intelligence)- Carrying out DX of river management while utilizing accumulated knowledge - There is a need to train young engineers and to implement rivermanagement efficiently with limited personnel and budgets.

Current embankment inspection
Identificationof conditions

Future embankment inspection(proposal)

Stage of condition assessment and primary evaluation

Stage of condition assessment and primary evaluation

Detection of deformities by on-foot inspection

Primary evaluation (a, b, c, d) using tools,
including AI, by extracting deformations fromphotographs, point cloud data, etc.
Challenges: Improvement of detection and evaluation accuracy
and reduction of costs (of measurement, analysis)(e.g., development of long-range airplane-type UAVs)

Challenges: Limited number of staff and budget

On-foot inspection (checking ambiguous parts)
Primary evaluation(Inspectors evaluate the state and progress offunctional deterioration using a, b, c, and d.)Challenges: Decline in the number of experienced
engineers and difficulty in securing timeto train young engineers

Stage of secondary evaluation

Secondary evaluation

Recording of
inspection andanalysis results

Image of inspection of port facilities by UAV(The organization evaluates conditions using a, b, c,and d at cross-sectional coordinating meetings etc.)

Registration to RiMaDIS

Significant reductionin the time it takes tocomplete the primaryevaluation⇒ Checking focusing ofareas of deformation⇒ Securing time to train
young engineers

Stage of secondary evaluation

Secondary evaluation(The organization evaluates conditions using a, b, c,and d at cross-sectional coordinating meetings etc.)

Registration to RiMaDIS(Road Structures Department, Airport Department, Coastal, Marine and Disaster Prevention Department, and River Department)

Introducing facilities andresearch departments, etc.

Analysis andevaluation

Budget and employees The efficiency of levee inspections is improved by replacing
on-foot inspections that mainly focus on visual observations withdesktop inspections using AI etc.
 Inspection techniques are inherited and improved by focusing on
checking deformed areas and securing time to train young
engineers

International expansion/
Public information activities As the human and financial resources of port managers andprivate businesses are limited, the implementation of more
efficient and accurate inspections and diagnoses is required.

Research on improvement of inspection efficiency ofriver embankments etc.

Beneficial use of field data

STEP 2

No cavity

Support for fieldtechnology improvement

Further cracking occurs because ofStress concentrates in the upper
Infiltration of rainwater through openings,
the reduced bearing capacity
part of the asphalt concrete layer,such as cracks and joints, created during
caused by graveling of the roadbed.
and cracks develop.
construction and the retention of
Water
infiltrated
tothe roadbed
rainwater
Delamination at water-resistant areas
through cracks that extended to theand weakening of the asphalt mixture
underside of the asphalt concrete layer.

Vertical acceleration (m/s2)<Image of inspection using vibrating rollers>

Support for accident anddisaster response Clarification of the mechanism of early deterioration caused bywater retained within the asphalt mixture layer and delamination
between layers through excavation surveys etc.
 Research on effective ways to extend service life corresponding to
the early deterioration mechanisms

 When soil liquefaction occurs in an airport, it is desirable to be able
to check for cavities under the airport pavement easily and quickly
without using special equipment.

Vertical acceleration (m/s2)

 Repeated repairs that are basically to restore original conditions
have increased the risk of early deterioration.
 The Pavement Inspection Guideline was issued in 2016 as the firstguideline showing basic matters concerning the inspection of roadpavements.
⇒ Increased awareness to reduce early deterioration

Study of the evaluation method of bearing capacity of
airport pavement in the event of a large earthquake

Research and development

Research and study on long-term performance of pavements

Organization

708

Organization

2. Research to increase the productivity and growth potential ofsociety1

Development of the DX Data Center for the digital transformation of construction processes

Research and development(Regional Development Bureaus)• Contractor access management• Inspection of the BIM model for infrastructure
created by the contractor

Support for accident anddisaster response• Advanced 3D model viewer• 3D data creation support software• Integrated 3D design software• 3D CAD integration environment• Comprehensive BIM support
software

BIM software (fare-paying)

BIM model for infrastructure
Generic object

Internet
Independent
server of acontractor

Private business (using paid software)

Support for fieldtechnology improvement

Computers of acontractor

Beneficial use of field data
International expansion/
Public information activities

Mass storage• Simple 3D model viewer• Point cloud model → creation of TIN
model• Road centerline generation• 2D → CAD → BIM model conversion• Linking inspection sheets andphotographs to BIM models
LAN within the Ministryof Land, Infrastructure, BIM software (freeware)Transport and Tourism
DX Data Center

Data
platform

3D printer

DX Data Center (central)
DX Data Center(with centralized hardware)

Computers for officials of the
Ministry of Land, Infrastructure,
Transport and Tourism

Officials of the Ministry ofLand, Infrastructure, Transport and Tourism

The DX Data Center is built to centrally store and utilize 3D digital data to promote the overall digital transformationof construction processes etc. and contribute to improving the efficiency of infrastructure design, construction, andmaintenance management processes.
 The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has announced that it will switch to the use of BIM/CIM for all public works,
except small-scale ones, by FY 2023, taking the opportunity of implementing measures to respond to the COVID-19 pandemic.
 The MLIT needs to create an environment in which BIM for infrastructure can be used in the outsourcing and the construction projects itorders.

 Assumption of use cases and consideration of functions that the DX Data Center should have
 System configuration study, system design, hardware development and system access management functions, BIM search, display anddownload functions for BIM data, and implementation of a Web conference system for sharing 3D models

Budget and employees
Introducing facilities andresearch departments, etc.

09

Object library (internal)

BIM models for infrastructure are createdand modified at the DX Data Center using
cloud-compatible software.

(used like a cloud by Regional Development Bureaus)

VR goggles

Parametric
model

Data
backupStorage(primary area)• BIM models for infrastructure are created in route planning anddesign work.
• Models modification and pasting construction management
information to the model in line with the construction work.
• Pasting inspection information• The models are shared in scenes, such as design discussions,disaster response, and repair studies.

Computers of acontractor

Contractor (using freeware)

Manufacturer
objectElectronic delivery(Regional Development Bureaus)
After examination of construction work, the BIM
models for infrastructure at the DX Data Center
are transferred to the electronic delivery server.

Example ofsearch result display

Image of information sharing using the DX Data Center

BIM data search result display screen(Research Center for Infrastructure Management)

Expansion of construction types and application technologies for constructions using ICTThis study is contributing to the improvement of productivity in the construction industry by establishing rules forthe use of ICT-based construction and measurement technologies in the management of workmanship in public
works.

 While taking into account proposals from private sector organizations, we are continuing to improve the standards so that they can be applied to
the workmanship management of public works.
 In FY 2020, the draft of various standards corresponding to the new measurement technology was prepared, such as the utilization of therecorded data of cutting edges etc. acquired from construction machines during earthwork construction for workmanship management.

Research and development

 With regard to ICT construction, which is the main initiative of the i-Construction project that started in FY 2016, the applicable construction
types and technologies are gradually being expanded based on the progress of technological development in the private sector.

Organization2

Support for accident anddisaster response

Improvement of shooting method of UAV photogrammetry(facing slopes etc.)(Research Center for Infrastructure Management)

Research on the promotion of i-Construction in ports and harbors

By developing processing programs that utilize AI technology, studying efficient UAV photogrammetry methods,
and maintaining a BIM/CIM library, this study will contribute to reducing the time and effort required for each task atconstruction sites.

 The development of a processing program using AI technology is expected to improve the efficiency of noise removal work, improve theefficiency of surveying work through the study of UAV photogrammetry methods used in ports, and reduce on-site work time through thedevelopment of a BIM/CIM library.
<Development of processing programs using AI technology><Development of BIM/CIM library>

Noise data

Beforenoise removal

Budget and employees

Multi-beam depth
measurement

Integrated model(structure + terrain)Afternoise removal• Reduction of processing time and effort through theuse of AI technology

Wave-dissipating concrete block

Breakwater
Wave-dissipating concrete block
Outer control
point (onbarge)• When measuring is conductedbased on the Manual of Public
Surveying Using UAV, it is necessary
to set up a control point at sea.
• An efficient measurement method
specific to ports is explored.
• The cost and workload required to install a control point at sea
are reduced.
Control point is set on the
breakwater.

• The prototype model (above) of port facilities (piersetc.) is being used to develop an environment(library) that can provide generic objects to users.
• Reduction of time and workload required to create
3D model on site

(Port and Harbor Department)

Introducing facilities andresearch departments, etc.

<Study on efficient UAV photogrammetry method>
Outer control
point (onbarge)

International expansion/
Public information activities

 In order to improve productivity in construction projects that use ICT, it is necessary to reduce the processing time of data acquired bymulti-beam depth measurement (dredging work) and to improve the efficiency of UAV photogrammetry (block installation work).
 To promote the use of BIM/CIM, it is necessary to reduce the time and workload required to create 3D models on-site.

Beneficial use of field data

3

Support for fieldtechnology improvement

Workmanship management using the recorded dataof the cutting edges of construction machinery

10

Organization

4

Improvement of the efficiency of maintenance and management through the use of
BIM models for public rental housing stock

By developing maintenance management BIM models and smartphone-based inspection methods for public rental
housing stock and other apartment buildings, this study will contribute to improving the efficiency of data-based
preventive maintenance of stock and other activities.

Research and development

 The use of BIM*1 is being promoted under the i-Construction initiative, which aims to improve the productivity of the entire construction
production system.
*1 Abbreviation for "Building Information Modeling" A BIM model that combines building attribute information in addition to 3D shape information is developed. Then, verification experiments
concerning the coordination with inspection information etc. using tablets is conducted, and a guideline for the use of BIM in themaintenance management phase is drafted.
Link and record absolutecoordinates (XYZ) andinspection data on site

Support for accident anddisaster response[1] Maintenance andmanagement BIM model[2] Inspection tool

Inspection history
Improvement of theefficiency ofinspections using
tablets (linking
absolute location
information from GIS
with building
information, history
information, andother data in real time
on-site)Managed using database (Excel)

BIM models allow 3D visualization ofdata, drawing creation, maintenanceand management data analysis, etc.

Inspection + repair history

Use of past inspection data

Support for fieldtechnology improvement
Beneficial use of field data
International expansion/
Public information activities
Budget and employees
Introducing facilities andresearch departments, etc.

11

Database (Excel)

Setting inspection routes[3] Maintenance andmanagement
database

Inspected
Abnormality foundRepairedSpace structure drawing

Maintenance and management
information(Housing Department)

5

Realization of automated driving with support from the infrastructureThis study contributes to the realization of automated driving by developing a system that supports smoothmerging on expressways by providing information from the road and by developing simulation models.
Development of a merging support information provision system

Research to promote automation of airport operations support vehicles

 At the merge point, it is not possible to confirm safety with only thetechnology of the vehicle itself; thus, it is necessary to provide
information from the road.

 Increased demand for air transportation due to the increased
inbound tourists
 Manpower shortage due to decrease in working-age population

 This study developed a system that detects traffic conditions on
the main line and provides it to the merging vehicles (automateddriving). System specifications are drafted, and field tests are
conducted on actual roads to confirm effectiveness.

Development of a simulation model for traffic flow in an airport
 Evaluation of safety and efficiency
 Examination of necessary facility improvements Examination of operational rules for automated vehicles etc.

Merging support information provision system[Merging vehicle (automated driving)]
Based on the information provided, vehicle control, suchas speed adjustment and steering wheel operation, is
automatically performed, and the vehicle merges into theopen space on the main traffic line.

Linked with aircraft spot-in
and spot-out

Demonstration experimenton automated driving at airports[Information provision device]
Traffic condition on the main line isprovided to a merging vehicle(automated driving).

<Image of this study>
Acquisition of location data fromGPS
Identified actual traffic conditionsin an airport and developed thetraffic flow simulation model[Vehicle detection sensor]
Detects traffic conditions
on the main line

By FY 2020, demonstration experimentsof automated driving have been
conducted at Tokyo International Airportand five other airports.

Monitor
Demonstration experiment at Tokyo International Airport(Road Traffic Department, Airport Department)Improvement of the efficiency of sewerage facility management by promoting DX

By developing technology to make remote monitoring and control systems compatible with each other, this study
will promote the widespread and joint use of sewerage facilities and contribute to improving the efficiency ofmaintenance and management operations.

Monitoring and control system a(specification of company A)
Monitoring and control system a(specification of company A)

Monitoring and control system a(specification of company A)

Monitoring and control system a(specification of company A)

Monitoring and control system c(specifications ofcompany C)

Each plant must be independently managed and maintained
because of the lack of compatibility among systems.

Monitoring and control system d(specification of company D)

Monitoring and control system b(specifications of company B)
Monitoring and control system c(specifications of company C)

Remote monitoring and control enable joint management of multiple
facilities. Costs can be reduced by improving the efficiency ofmaintenance and management operations.

* Refers to a project to demonstrate innovative sewage technologies. Demonstration studies are conducted using full-scale facilities.

Research on measures to improve the efficiency of the hinterland transport of international maritime containers

This research examines and proposes measures, such as promoting cooperation among companies and improving
transportation systems to/from inland areas, aiming to maintain international maritime container transportation
functions and reduce costs in the future.

(Content of research)

Before introducing round use

After introducing round use

Hinterland
areas

Hinterland
areas

Exportingshippers

Exportingshippers

Importingshippers

Flexibility: Shippers(Target)Port: Hinterlandtransport(empty container): Hinterlandtransport(full container)Port

Container round use: The exchange of empty containers between
importing and exporting shippers at the hinterland area.

(Port and Harbor Department)

Introducing facilities andresearch departments, etc.

• Presentation of the estimated shortage of truck drivers• Proposal for a social system to improve the efficiency of thehinterland transport functions• Presentation of evaluation methods for the effects of theabove system

Importingshippers

Budget and employees[1] Estimation of expected driver shortage specific to the hinterland transportof containers[2] Examination of social systems to maintain the hinterland transport ofcontainers (measures to promote cooperation among companies,
improvements of means to transport containers to/from hinterland areas,etc.)[3] Verification of the effect of improving the efficiency of hinterlandtransportation[4] Development of a guideline as an outcome

International expansion/
Public information activities

 International maritime containers are transported to/from the hinterland regions mainly by truck, and there are concerns about the impact ofdriver shortages.
 Inter-company cooperation is seen in some areas to address driver shortages etc. (e.g., container round use). Expanding this collaboration is
expected to provide further benefits. There is also the possibility of improving efficiency by utilizing inland ports or depots etc.

Beneficial use of field data

7

(Water Quality Control Department)

Support for fieldtechnology improvement

Monitoring andcontrol system b(specifications ofcompany B)

Monitoring andcontrol system d(specification ofcompany D)

Support for accident anddisaster responseTechnology thatmakes systems
compatible isdeveloped andstandardized.

Research and development

 The specifications of monitoring and control systems for sewage treatment plants differ from manufacturer to manufacturer, and theincompatibility between systems is the bottleneck in promoting wide-area and joint management.
 In order to promote wide-area and joint use of sewerage facilities and improve the efficiency of maintenance and management operations, the
B-DASH Project* is developing and standardizing the technology to make the systems of each treatment plant compatible without large-scale
system upgrades.

Organization

6

12

Organization
Research and development
Support for accident anddisaster response
Support for fieldtechnology improvement
Beneficial use of field data
International expansion/
Public information activities
Budget and employees
Introducing facilities andresearch departments, etc.

13

3. Research to support comfortable and secure living
1

Regional revitalization through support for smart city promotion

By surveying advanced cases and developing evaluation methods, this research supports the promotion of smart
cities (*) by local governments, contributing to increased productivity and convenience in the lives of citizens.
 The theme of smart cities has become multifaceted in the areas oftransportation, livelihood support, disaster prevention, crime
prevention, and tourism, and new technologies have become morediverse.
 However, new technologies that can solve various urban problems
have not been systematically organized, and evaluation methods for
smart city plan of in terms of the effectiveness of installing newtechnologies in solving urban problems have not been established Support is needed for local governments to examine the direction ofsmart cities.
 Survey on advanced cases of smart cities inside and outside of Japan
 Systematic organization of new technologies that can be used tosolve various urban problems
 Based on the above, an evaluation method for smart city plan interms of the effectiveness of installing new technologies in solving
major urban problems is developed.

2* A sustainable city in which management (planning, development, management andoperation, etc.) is carried to address various issues that the city is facing by utilizing newtechnologies, such as ICT, to achieve optimization in the overall aspects.

Intensity ofposts thatshows hotness
High

Low

Transport and livelihood
support(automated driving bus)

Maintenance and management, Environment and tourism
disaster restoration, and(heat map based on SNS data)
livelihood support (drones)(Urban Planning Department)

Promoting the use of 3D city models in urban planning and urban development

This study will contribute to the promotion of DX in urban administration by developing use cases that solve urban
problems, such as environmental issues and disaster management through advanced simulations using extended
specifications of 3D city models.
 Progress in developing an open 3D city model that
contributes to the creation of new innovations
 Challenges include reducing the cost of creating andupdating 3D city models and developing diverse use cases ingovernment and the private sector.

 Development of a low-cost method for creating andupdating 3D city models using existing data Development of use cases for advanced simulation of urban
environment, disaster management etc. by expanding the
3D city models

3[Reduction of creation andupdate costs]
Use of point cloud survey dataetc. from constructions
conducted as i-construction.

[Expansion of 3D city model]
Creation of detailed
specifications for buildings,
trees, etc.

[Development of use cases]
Implementation of studies,such as the evaluation of the
impact of street trees onwind paths(Urban Planning Department)

Use of bollards to protect pedestrians waiting at intersections

This study establishes the necessary strength settings and installation methods for bollards to resist vehicle
collisions to contribute to ensuring safety at intersections that children use.
 In recent years, there have been a number of accidents
involving elderly drivers and accidents in which children
have been killed or injured.
 The strength of bollards, which are often installed atpedestrian crossing junctions, is not yet known to protect
pedestrians behind them from entering vehicles.

 The strength of bollards and its evaluation methods arecompiled based on crash tests etc.
 Reflected in technical standards for bollard installation etc.

Bollard collision test (collision speed 45 km/h)

BollardBollardInstallation image of bollards(Road Traffic Department)

Development of design and construction techniques for mixed-structure buildings using new woody materials

By providing standard design examples of mixed-structure buildings that incorporate large wooden panels, such as
CLT, into reinforced concrete and steel structures, this study will contribute to expanding the demand for andpromoting the use of wooden materials.

Research and development

 There is demand for expanding the use of CLT (cross-laminatedtimber) and other materials to mid- and high-rise buildings.
 Fire prevention and evacuation regulations have been streamlined
under the 2018 amendments to the Building Standards Act, butthey have not been fully utilized, especially in mixed-structurebuildings.

Experiment of fire spread
prevention measureson the upper floors

Design example of RC + wood
(government building)(Building Department)This study will contribute to the realization of a compact plus network by developing a revitalization method toincrease the sustainability of suburban residential complexes that are becoming old towns and using them as bases
for suburban residences.

6

Scenarios for ensuring sustainability
 Realization of an environment where householdswith children can move in and settle down

Development of mixed
communities

Child-rearing
generation

Elderly• Induce childcare
supportfunctions byutilizing vacantfacilities etc.

 Realization of an environment
where elderly people can continue
to live safely and with peace of mind

Improvement of the
QOL of the elderly
Elderly• Induce elderly housing by utilizing vacanthouses.

(Housing Department)

Visualization of values of ecosystem services in coastal areasEvencal site relaxryatidoayalurHistori

Enviroeducanmental
tion

lt
Cu

n

h

arc

Multiple ecosystem services of coastal areasseBlue carbon

Re

Spawning andFood provisionnursery grounds
Biodiversity
Coastal protection
Water quality
improvement

Visualization of values ofmultiple ecosystem services(Coastal, Marine, and Disaster Prevention Department)

Introducing facilities andresearch departments, etc.

Everyday relaxation

eatio
Recr

Environmental Recreation
education

Fo
prov od
ision

Glo
b
a
mit l war
iga mintion g

 Development of a method for evaluating(visualizing) multiple ecosystem services
 Used for planning, design, and evaluation ofenvironmental improvement projects to meetsociety’s needs.

es
eci ionSp ervatscon

The area of the pie isthe size of the valueof ecosystem serviceyalit
qu entter emWa provim Coastal areas provide multiple ecosystemservices, but the values of services have notbeen recognized.
 In particular, cultural services, such asrecreation and environmental education, areoften underestimated.

Budget and employees

This study develops a method to visualize the values of multiple ecosystem services in coastal areas and contributes
to making coastal areas a space that many people can enjoy and relax in.

International expansion/
Public information activities Construction of a regeneration scenario to enhancesustainability to use them as bases for suburban
residences Development of planning methods for inducing
lifestyle support functions (facility functions, service
functions, transportation functions, etc.) according
to the regeneration scenario

TargetBeneficial use of field data Residential complexes developed in the suburbs ofcities during and after the rapid-growth period
were constructed upon a high level of infrastructure.
 On the other hand, they are becoming old towns
that are less convenient to live in and facing
challenges, such as an aging population with fewer
children.

Support for fieldtechnology improvement

Regeneration of suburban housing complexes to improve sustainability

Support for accident anddisaster response Five prototype buildings are established, and the structural,
fireproof, and durability performance required to realize them areverified through experiments.
 Standard specifications for joints and other components thatanyone can use and design examples of prototype buildings arepresented.

5

Organization

4

14

Organization

Advanced technical support for response to disasters/accidents
Results from dispatch of TEC-FORCE by NILIM during the past three years

Research and development

When a disaster occurs, in response to requests from the disaster region, NILIM sends its own research personnel withadvanced technological expertise in various fields to the disaster region. When a particularly severe disaster has occurred,
it sends TEC-FORCE* etc. to give stronger support for measures to prevent secondary disasters and to reconstruct theregion.
In recent years, NILIM dispatched experts to the disaster sites of the July 2018 heavy rains, the 2018 Hokkaido Iburi
Eastern Earthquake, Typhoon No. 15 (Faxai) and Typhoon No. 19 (Hagibis) in 2019, and the July 2020 heavy rain andTyphoon No. 10 (Haishen) in 2020, among others.

Support for accident anddisaster response* Technical Emergency Control Force: Team dispatch system established in FY 2008 by the Ministryof Land, Infrastructure, Transport and Tourism in order to respond to a large-scale natural disasterby surveying disaster damage and providing local governments etc. in the disaster regions withtechnical assistance.

 Dispatch history

 Legend
Solid line:

Disasters to which NILIM dispatched
TEC-FORCE
Dashed line: Disasters other than those mentioned above

Support for fieldtechnology improvement

FY 2020: 9 disasters
105 person-day
FY 2019: 8 disasters
156 person-day
FY 2018: 15 disasters
215 person-day[Disasters caused by torrential rains in 2020](Heavy rain in July 2020 and Typhoon No. 10 (Haishen))

Yatsushiro City, Hitoyoshi City, Kuma Village, andSagara Village in Kumamoto Prefecture,
Takashima City in Shiga Prefecture,
Tenryu Village and Takagi Village in Nagano Prefecture,
Kushima City and Shiiba Village in Miyazaki Prefecture,
Hirado City and Nagasaki City in Nagasaki Prefecture, etc.

Beneficial use of field data
International expansion/
Public information activities

Support for restoration from the 2016 Kumamoto Earthquake - Technological support for creative reconstruction
The Kumamoto Earthquake Recovery Division, which was established at the disaster restoration site to further
accelerate the restoration and reconstruction efforts after the Kumamoto Earthquake, is providing technical support
for the restoration of roads not only to restore them to their original state but also to make them moredisaster-resistant in preparation for another major earthquake, which may occur in the future.

Budget and employees Planning and design of bridges at locations where lateral fault displacement occurs
Technical support is provided for the planning and design of bridges that take into account the ability of the entire bridge to absorb forces andrecover its functions as quickly as possible in the event of fault displacement, which is difficult to predict and highly uncertain.
Bridge bearing
Ground motion

Introducing facilities andresearch departments, etc.

15

Bridge girder

Movement of a bridge
girder after the bearing
has been damaged.

Final failure firstoccurs at thebearing section.
Interruption of the transmissionof unexpected forces to thesuperstructure and substructure
Bridge girder

Presumed active fault

The Shin-Aso-ohashi Bridge, constructed toreplace the Aso-ohashi Bridge(opened in March 2021).

P2 pierP3 pier

View from the  Top of the bridge piers wider

Image of the state of the bridge when a fault displacement occurs

Organizationand improvement of countermeasure techniques
Contribution to the provision of information before a disaster occurs and evacuation of residents

 Flood risk line
To encourage proper evacuation actions, the imminence of riverflooding, which changes from moment to moment, is predicted foreach area.

 Visualization of floods using VR technology
Development of a flood VR display system to correctly communicate
the predicted flood risk to residents

There is a risk of overflowing or flooding (equivalent to Level 5).
Water is above the dangerous water level (equivalent to Level 4).
Water is above the water level for evacuation (equivalent to
Level 3).
Water is above the flood advisory level (equivalent to Level 2).
Water level has not reached the above levels.

Contribution to information gathering and recovery immediately after a disaster

Image of viewing

Damage line
Soma 6Seismic intensity
Koriyama 6at each
Iwanuma 6observation point
Katsurao 6Hirono 6Sukagawa 6Nakano 6Nihonmatsu 5+
Haramachi 5+
Kakuda 5+

Check CCTV camera footage.

Major earthquakes in the past
Estimated natural period

Bridges in general

Long span bridge (span length > 200 m)
Check the location of CCTV
cameras, seismic intensity, etc.

Periodic band in which
damage to housing is substantial

 SAR image interpretation support system
Helicopter survey in areas selected based on interpreted
outcomes
Color composite SAR image

Satellite image (SPOT6)
Area with many slope failures estimatedby the interpretation of SAR images

 Building diagnosis immediately after an earthquake
A criterion for determining structural safety for immediate occupancy is being
examined and a guideline for the visual inspection of non-structural components isunder development so that the non-expert managers of buildings can quickly confirm
whether they are able to stay inside immediately after an earthquake without theconfirmation by experts.
Accelerometer

Safety of structural frames andnon-structural components is
uncertain immediately after anearthquake.

An image of visualThis study aims to develop asystem in which accelerometers inspection ofsuspended ceilingare installed in buildings.

Introducing facilities andresearch departments, etc.

Example of the detection of slope deformation based on SAR images(the earthquake in Eastern Iburi, Hokkaido, in 2018)

Issues under development

Budget and employees

Natural period (s)International expansion/
Public information activities

Maximum response acceleration (m/s2)

Damage line: A guideline for the occurrence ofdamage to structures. In previous earthquakes,
damage to structures became limited when
the level was below this line.

 List of CCTV cameras
Prompt view of situations through the extraction of cameras inareas of high seismic intensity

Beneficial use of field data Spectrum analysis information
Estimation of the scale and extent of damage during the initial
response period immediately after an earthquake by comparing theacceleration response spectrum of the earthquake with the damageline created on the basis of previous earthquakes.

Support for fieldtechnology improvement

Contribution to quick information gathering and recovery in the event of a large-scale disaster by developing
effective uses of existing facilities, such as CCTV cameras and satellites, and by developing a building safety
diagnostic method that does not require confirmation by experts

Support for accident anddisaster response

Dangerous
water level

Research and development

By developing a system that identifies and predicts flood risk and communicates the imminence of river flooding inreal time, the study will contribute to the realization of quick and optimal evacuation of residents.

16

Organization

Support for improvement of field technology of regional development bureaus
Hosting of personnel Acceptance of local governments and private businesses

Research and development
Support for accident anddisaster response
Support for fieldtechnology improvement
Beneficial use of field data
International expansion/
Public information activities
Budget and employees
Introducing facilities andresearch departments, etc.

17

NILIM is accepting people from local governments and private businesses as exchange researchers and supporting them in
improving their technical skills through technical guidance and workshops. (Fifty exchange researchers have been accepted asof April 2021.)

 Hosting personnel from regional development bureaus
We accept staff members from regional development bureaus who have realized field issues through their work as
researchers or staff holding two posts for a certain period to help improve their skills. Personnel who have acquired technicalskills are active as core technicians in each region after returning to their regional development bureaus.

Completing and strengthening training
NILIM holds training sessions and lecture courses, and sends out lecturers in order tospread and establish its technical policy and improve the technological level of society as awhole.
(A total of 188 lecturers dispatched in FY 2020 as of the end of March 2021)(Twelve training courses with 422 participants held in FY 2020 (Yokosuka Office No. 2))

Support for local issues

Practical course for port planners

NILIM is working to overcome issues that arise on site in cooperation with local offices and other outposts. In addition, we
have established the Kumamoto Earthquake Recovery Division at the site of the Kumamoto earthquake to accelerate
restoration and recovery efforts. We have also dispatched staff to Sediment Disaster Prevention Technology Center of Kinki
Regional Development Bureau to perform research and technical development concerning large-scale landslide disasters.

Technology consultation
NILIM constantly provides national government agencies and local governments etc. with technical support of various
kinds for policy implementation and project execution. For example, the Coast Division looks after a technical support counter
for storm surge flooding simulations necessary for preparation of maps, which show areas likely to be affected by storm surge
flooding as created by prefectural governors based on the Flood Control Act.

 Technical Consultation Office

In December 2014, NILIM Technical Consultation Office was established. Covering all fields over which NILIM is in charge,
this one-stop service accepts consultations regarding all fields and facilities.
Earthquakes

River Department
Head of River Division
Masaki Fukushima

Bridges

Water Quality

Road Structures Department
Head of Bridge andStructures Division
Masahiro Shirato

Water Quality Control Department
Head of Wastewater
System Division
Yuji Okayasu

Tunnels

RiversDams

Bridges

Road Structures Department
Head of Earthquake Disaster
Management Division
Hitoshi Masuda

Disastercountermeasures

River Department
Head of Flood Disaster
Preventation Division
Osamu Itagaki

Road Structures Department
Head of Foundation, Tunnel
and Substructures Division
Toshiaki Nanazawa

CoastRiver Department
Head of Coast Division
Fuminori Kato

Sabo

Sabo Department
Head of Sabo
Risk-Management Division
Hiroaki Nakaya

 Contact (E-mail: nil-soudanmadoguchi-gijyutu@gxb.mlit.go.jp)
Manager of Planning Division, Planning Department (TEL: 029-864-4343)

Road Earthworks
Pavements etc.

Road Structures Department
Head of Pavement andEarthworks Division
Kazuhiro Watanabe

River Department
Head of Large-scale
Hydraulic Structure Division
Masafumi Kondo

RiversRiver Department
Research Coordinatorfor River Structures
Yoshio Suwa

 Website address
http://www.nilim.go.jp/lab/bbg/tec-soudanSupport for the promotion ofsewerage stock management

Deterioration analysis data of road bridges managed by the national
government, obtained through periodic inspections, wereorganized based on deterioration characteristics under 272
conditions and posted on the website as NILIM Reference Data No.
985.

The database of sewer pipe deterioration, which collects the resultsof surveys conducted by local governments and organizes
information, such as deterioration assessment results, is madeavailable to the public (approximately 250,000 spans from 56 local
governments as of June 2017).

End
sectionMiddlesectionSewerage ledgers of individual cities

Data required for integrity projection

The sewer pipe deterioration
database completes the datanecessary for the study!

100%

各損傷度の比率

e
d
c
b
a

50%

0%

0
10
20
30
40
50
60
70
80
90
100

25%

Elapsed Years

75%

e
d
c
b
a

50%
25%
0%

0
10
20
30
40
50
60
70
80
90
100

75%

Pipe diameter
Removal method etc.

a Damage (small): Required data
: When necessary

End sections deteriorate quickly.
Image of inspection data of 24,000 bridges managed
by the government

Integrity projection
formulaResults of deterioration assessment(TV camera survey results)

Number of years
elapsedImage of the sewer pipe deterioration database

Support for port policies through the analysis
of maritime big data

Information related to applications for energy conservation standards
based on the Act on the Rational Use of Energy was gathered andanalyzed (15,000 cases/year).
Energy conservation performance and design specifications (heatinsulation performance, efficiency of air-conditioning equipment,etc.) were organized for office buildings etc. and posted on thewebsite as NILIM Reference Data No. 1143.
The study also contributes to the promotion of the government's
energy-saving measures established in response to the 2050
Declaration on Carbon Neutrality.

Regarding ship dimensions, sailing conditions, and trends of marine
cargo transportation, maritime big data, such as global ship data
(Lloyd's data), location data transmitted by ships (land-based andsatellite AIS data), and cargo flow data (PIERS data) are analyzed, andthe results are published as needed.
Sea ice concentration

Barents
Sea

Yamal Peninsula

East Siberian Sea

Compiled from JAXA satellite AIS data and sea ice concentrationdata.
 indicates observed tracks, color-coded by vessels.

BeringStraitPevek

Example of Northern Sea Route analysis using satellite AIS data
Example of data posted as energy conservation
performance evaluation index BEIm
Distribution of energy conservation performance
evaluation index (warm regions)Introducing facilities andresearch departments, etc.

Number of cases

Total

If the energy efficiency
conservation
evaluation index,
BEIm, is less than 1.0,
the building is judged
to comply with theenergy conservation
standard. The average
BEIm in warm regions
is 0.76.

Sea ice conditions and vessel locations along
the Northern Sea Route in August 2020

Budget and employees

Number of cases = 7699, mean = 0.76, median = 0.77

Murmansk

International expansion/
Public information activities

Support for planning of energy conservation
measures for office buildings etc.

Beneficial use of field data

Elapsed Yearse Damage (large)

Integrity

100%

Percentage of damage by severity

Pipe type

Support for fieldtechnology improvement

Number of years elapsed

Support for accident anddisaster response

Supporting the establishment of amaintenance cycle for road bridges

Research and development

NILIM is reorganizing housing and social infrastructure-related data collected for administrative purposes and using
it for research and to support on-site operations.

Organization

Collection, analysis, and management of data forming technical basisof policy formation, and return to society

18Organization
Research and development
Support for accident anddisaster response
Support for fieldtechnology improvement
Beneficial use of field data
International expansion/
Public information activities
Budget and employees
Introducing facilities andresearch departments, etc.

19

International research activities
NILIM is promoting international research activities based on the perspectives of “Technical contribution to domestic policy”,“Technical cooperation with developing countries”, and “Overseas deployment of infrastructure systems”.

Technical contribution to domestic policy
Technical contribution to domestic policy
A platform for research activities related to international
conferences etc. scheduled for FY 2021 is constructed.

Exchange of opinions for Japan-Netherlands joint research:
River Department
Views on flood risk management are exchanged in the context ofclimate change.

Bilateral research cooperation program with the Federal
Highway Administration (FHWA) of the United States: Road
Structures Department

Exchange of opinions on flood risk management*1

A new research cooperation plan on Structural Health Monitoring – Non-Destructive Evaluation (SHM-NDE) and Innovative
Materials was established in August 2020.

Technical cooperation with developing countries
Cooperation with JICA projects and training: Administrative Coordination Department,
Research Center for Infrastructure Management
Two training sessions were conducted in online format in FY 2020.

Acceptance of foreign trainees: Road Structures Department
Practical training was provided for one trainee from Chile.
Training on port development and planning (for port engineers) ➡

Overseas deployment of infrastructure systems
Cooperation in the development of national port standards in Vietnam: Port and Harbor Department• Cooperation in the development of national standards based on the memorandum of understanding signed between
the Ministry of Land, Infrastructure, Transport and Tourism of Japan and the Ministry of Transport of Vietnam• In FY 2020, the above MOU was renewed, and a Web workshop was held.
(Vietnam side)

Exchange of the memorandum of understanding(October 19, 2020)(Japan side)

Web workshop with the Vietnam counterpart

Activities related to ISO: Water Quality Control Department, Building Department, and Housing Department
Participated in TC to review and discuss the respective standards*1: Taken from the website of the consortium for promoting climate change adaptation in the field of water[http://www.climatechangeconsortium.com/report/plan_report.html])

Cooperation with external organizations

 Contract research
Research aiming to achieve better research results efficiently by
entrusting to other organizations
 Joint research
Research aiming to achieve better research results byconducting joint research with other organizations

 Social experimentThis is an experiment on the implementation of research resultswith a local government etc.

Research evaluation
Internal evaluations and external evaluations of individual research challenges, achievements, and the operation of institutions
are performed on the basis of the General Guidelines on the Evaluation of National R&D to build an independent and individual
management cycle, promote, and improve the quality of research activities.
NILIM strives to improve the quality of research results by introducing systems allowing external experts to evaluate individual
research challenges that are priority research projects from a wide range of perspectives.

New research
issue(candidate)Preevaluation

Evaluate necessity and validity
when starting new R&DInterim report (Partially implemented):
Receive opinions on ongoing researchand take necessary action, such as
reviewing plans

Completion ofresearch

Postevaluation

Post-evaluation:

Evaluate R&D results and reflect
these in future improvement anddissemination of R&D results

 External evaluation of R&D organization• Reflecting research
results in policies• Reflecting in proposalsof new research plans

Follow-up
surveyFollow-up survey(Partially implemented):
Evaluate reflection of results inpolicies and secondary effects, andreflect these in the examination of
future R&D issues and other activities

Outside experts evaluate research activities as a whole at NILIM, as well as environment improvement initiatives that support the
research activities, and NILIM strives to improve its operation based on these results.

Internal presentation meetingfor young researchers

Compliance
We conduct compliance activities according to the promotion plan for the current fiscal year while giving due consideration to
the monitoring results and advisory opinions of the Compliance Advisory Committee (External Expert Committee).

Response to misconduct in research
In addition to establishing NILIM Guidelines for Responding to Misconduct in Research, NILIM makes efforts to improve awarenesstoward research ethics to prevent misconduct (fabrication, falsification, and plagiarizing).

Introducing facilities andresearch departments, etc.

Research Departments and Administrative Departments cooperate and work on developing
young personnel systematically by combining Off-JT and OJT effectively. NILIM holds internalpresentation meetings for young researchers who have little presentation experience and a study
group by young personnel aimed at enhancing development through mutual learning.
Experience and Know-how Transmission Lectures are held in order to make use of theaccumulation of research, experience, and know-how of predecessors for improving the skills ofeach staff member.

Budget and employees

Internal training

International expansion/
Public information activities

Pre-evaluation:

Start ofresearch

InterimreportBeneficial use of field data External evaluation of individual research challenges

Support for fieldtechnology improvement

 International cooperation
It aims to improve the quality of research results of NILIM and to
give technical support to other countries (international
contribution) through joint research, as well as regular informationexchange between overseas research institutes and NILIM.
Indonesia Department of Public Works and Department of
Citizen Housing Road Research Institute, Korean Research Institutefor Human Settlement, Sri Lanka Ministry of Disaster Management
National Building Research Organization, German Federal Institutefor Research on Building, Urban Affairs and Spatial Development,
etc.

Support for accident anddisaster response Call for technologies
It aims to promote the use of superior technologies by inviting
technologies from the public, which will be tested on-site by the
MLIT.

 Domestic cooperation
It aims to develop education and research on the university sideand to contribute to the activities of NILIM through coordinationand cooperation between universities and NILIM.
University of Tsukuba, Kansai University, Tokyo University of
Science, etc.

Research and development

By implementing joint research, contract research, calls for technologies, and social experiments; concluding agreements; andleveraging technologies provided by industry and academia, as well as knowledge of different fields, such as social science and thehumanities, NILIM strives to improve the efficiency and quality of its research.

Organization

Management initiatives supporting high-quality research

20Organization
Research and development
Support for accident anddisaster response
Support for fieldtechnology improvement
Beneficial use of field data
International expansion/
Public information activities
Budget and employees
Introducing facilities andresearch departments, etc.

21

To create a deeper understanding of NILIM
WebsiteLectures

The site actively provides information, including an outline of
NILIM, direction of research activities, research subjects, results, andevent information. (URL: http://www.nilim.go.jp/)
Visit this site to view information about lecture meetings, open
houses, open experiments, and other PR information.

NILIM Lectures
NILIM holds the NILIM
Lectures every year andintroduces its activities,
announces research results,
and makes
recommendations for the
resolution of technical
NILIM Lectures (Dec. 2019)
policy issues.
Approximately 700 people attend every year.
In FY 2020, the event was distributed for the
first time as an on-demand video on YouTube.
It also holds specialist lecture meetings andsymposiums in each field whenever necessary.

E-mail service
We make simple and timely introductions of
the activities and research achievements of NILIM.
We normally send information out twice a month.
You can register to receive the e-mail service fromthe QR code on the right.

The NILIM YouTube channel
Videos of experiments and lectures in the field of housing andsocial infrastructure of NILIM are available on YouTube witheasy-to-understand explanations.

NILIM Report
NILIM Report is publishedannually to introduce andexplain research trends andthe reflection of research
results in policy and presents
recommendations concerningtechnology policy challenges.
(The full report is publishedon NILIM website)

Comprehensive Research Report of NILIM
A Comprehensive Research Report of
NILIM is a report of the research resultsthat have academic value, contribute to
the planning and enactment of policy, orpresent the results of surveys, testing,observations, etc. that are deemedvaluable enough to bereleased to the public.
(The full report ispublished on NILIM
website.)Presenting papers
NILIM announces approximately 560 papers per year, andreceives awards for papers in many fields, both from inside andoutside of Japan.
• Won the Excellent Paper Award at the 75th Annual Conference of
the Japan Society of Civil Engineers (October 2020)• Won the Most Excellent Paper Award in the 2020 Land andInfrastructure Research Conference (November 2020)• Won the Excellent Paper Award in the 32nd Technical ResearchPresentation Conference (November 2020) etc.

On-demand distribution of the NILIM lectures (January 2021)

Lectures on demand
Lectures on demand areheld with the aim of having
NILIM researchers go
directly to schools etc. toexplain research contents
and answer questions while
holding open
communications withView of a lecture
people.
Online lectures are also available in order toprevent the spread of COVID-19. (Data in FY 2020:17 lectures)Open house and facility tour
Open house is provided to
introduce research facilities while
explaining NILIM’s research contents.
We also conduct facility tours
where we introduce our researchfacilities while introducing researchcases.
Open house is being suspended
for the time being in order to preventthe spread of COVID-19.

Contest for making bridges out of cardboard(Scene of the awards ceremony)

Facility Tour Employees

 Research budget

Roads
2 Billion JPY

Construction
300 Million JPY

Administrative
staff
97

River andsediment
disasters
1.1 Billion JPY

Total
354

Ports/harbors
2.1 Billion JPY

Research staff
257

Sewerage systems
2.3 Billion JPY

Structure of employees (April 2021)

 Establishment of NILIM

Ministry of Land, Infrastructure, Transport and Tourism
Public Works Research Institute (from 1922)
Building Research Institute (from 1942)
Port and Harbor Research Institute (from 1962)

Ministry of Land, Infrastructure, Transport and Tourism

Independent administrative agencies*1
Public Works Research Institute

NILIM

Building Research InstitutePort and Airport Research Institute*2

Under Article 194 of the Orderfor the Organization of MLIT

Survey and research and technologicaldevelopment which might fail to be
implemented if left up to the private
sector from among those that must be
implemented from the perspective of
public service and which the national
government need not implement directly.

*1 With the April 2015 revision to the Act on General Rules for Incorporated Administrative Agencies, the Public Works Research Institute, Building Research Institute, and
the Port and Airport Research Institute became the National Research and Development Agencies.
*2 In April 2016, the National Maritime Research Institute and the Electronic Navigation Research Institute were merged to form the Port and Airport Research Institute.

Introducing facilities andresearch departments, etc.

Comprehensive surveying, testing, research, anddevelopment, technology guidance, dissemination ofachievements, and collection, organization, andprovision of information, regarding technologies
related to the provision of social infrastructure inorder to utilize, develop, and preserve the national
land and to the planning and proposal of policies
that are under the jurisdiction of the Ministry of Land,
Infrastructure, Transport and Tourism.

Under Article 2 of the Act on General Rules
for Independent Administrative Agencies

Budget and employees

MLIT Headquarters etc.

International expansion/
Public information activities

MLIT Headquarters etc.

Beneficial use of field data As part of the establishment of the independent administrative corporation system following on from thereorganization of ministries and agencies in January 2001, departments conducting work in close and inseparable
cooperation with the Ministry of Land, Infrastructure, Transport and Tourism were integrated into one organization
as of April 2001. In April 2021, NILIM celebrated its 20th anniversary.

Support for fieldtechnology improvement

Structure of research budget (initial budget for FY 2021)

Support for accident anddisaster response

Total
10 Billion JPY

Research and development

Other
1.6 Billion JPY

Airports
600 Million JPY

Organization

Research budget and employees

22Organization

Introducing research departments etc.
Director-General Deputy Director-General  Deputy Director-General Executive Director for Research Affairs  Executive Director for Research Affairs

Asahi Office

Tachihara Office

Research and development

General Affairs Department

Road Traffic Department

 Deputy Director of General Affairs Department  Senior Officer for Welfare Senior Officer for Contract and National Property

 Research Coordinator for Road Affairs
 Research Coordinator for Road Disaster Prevention

Personnel and Welfare Division General Affairs Division Accounting Division
Head Officer for General Affairs (Asahi, Tachihara Office)Planning Division
 Research Coordinator for Digital Transformation of Infrastructure Systems
 Research Coordinator for Evaluation  Research Coordinator for Codes and Standards

Support for accident anddisaster response

Planning Division Research Administration and Evaluation Division
Research Facilities Division International Research Division
Senior Officer for Cybersecurity and Information

Administrative Coordination Department
 Research Coordinator for Information and Construction Systems
Administrative Division Planning and Coordination Division Technological Information Division
Cost Estimation System Division International Coordination Division

Water Quality Control Department
 Research Coordinator for Water Quality Control
 Research Coordinator for Wastewater Energy Management and System Restoration

Support for fieldtechnology improvement

The Water Quality Control Department researches technical standards and management
methods for sewerage facilities in order to protect hygienic living environments and beautiful
water environments, reduce flood damage in cities, and at the same time, conserve the global
environment and form a recycling society.

Yokosuka Office

Roads have transportation functions that support the movement of people and the transportof goods, plus space functions: forming the backbone of cities, accommodating lifelines, andproviding disaster prevention spaces.
The Road Traffic Department researches technologies that clarify, evaluate, and improve thesefunctions and the use of ICT (information communication technologies).

 Road Division

The Road Division conducts research into road traffic survey/road traffic management
techniques to implement initiatives making smart use of roads, analyses of the effects of road
network maintenance, and road geometry construction for smooth road traffic etc.

 Road Safety Division
The Road Safety Division conducts research into the acceleration of road traffic safetymeasure management by applying big data, safety improvement policies for community
roads, ensuring safe and pleasant bicycle routes, risk assessment/countermeasures for snow
damage to roads, etc.

 Road Environment Division
The Road Environment Division conducts researches to achieve a better road space and roadenvironment by speeding up the elimination of utility poles, accelerating the effort throughcost reductions, creating and utilizing road space to meet diverse needs, and preserving theroadside, natural, and global environment.

 Intelligent Transport Systems Division

The Intelligent Transport Systems Division conducts research to achieve Smartways thatcomprehensively incorporate ITS (Intelligent Transport System) technologies that are used tobuild systems to integrate people, vehicles, and roads using information communication
technologies.

 Wastewater System Division
The Wastewater System Division conducts research to support stock management,
earthquake countermeasures for wastewater facilities, mitigation of urban storm water
damage, and wastewater system planning using low cost methods in order to appropriately
manage sewer networks.

 Wastewater and Sludge Management Division

Beneficial use of field data

The Wastewater and Sludge Management Division conducts research on the effective use ofresources, energy, and stocks of wastewater systems, the building of a sound water cycle andconservation of the water environment through wastewater treatment, and improvement ofhygienic safety through river system water quality risk measures and global warming
countermeasures for wastewater systems.

River Department
 Research Coordinator for River Structures
 Research Coordinator for Irrigated Water Disaster Management
 Research Coordinator for Water Environment
The River Department conducts research on technologies to plan, design, manage, andperform crisis management concerning facilities on rivers, coastlines, and at dams to ensure thesafety and peace of mind of the people of Japan against floods, tsunamis, and other natural
disasters and the increasingly severe conditions caused by climate change. The department
also works to maintain beautiful national land by preserving rivers, coastlines, water cycles, andsediment systems in good condition.

 River DivisionInternational expansion/
Public information activities

The River Division develops methods and accumulates knowledge about river management
for socially safer and environmentally better rivers and then systematizes and standardizes
technologies that promote policies based on these researches.

 Coast Division

The Coast Division is involved in research initiatives that preserve the coast in order to protect
the coastal areas from storm surges, tsunami, and erosion with consideration given to theenvironment and use, as well as research related to the technical standards for shore
protection facilities.

 Water Cycle Division

The Water Cycle Division researches methods of advanced control of the water cycle using
technologies, facilities, etc. to clarify and to predict the state of the flow of water during
floods and during normal times, and ways to link these to disaster prevention, environmental
conservation, and to ensure water resources.

 Large-Scale Hydraulic Structure Division

Budget and employees

The Large-Scale Hydraulic Structure Division researches the development, systematization,and standardization of technologies related to the design, maintenance, management, andfunctional improvement of large-scale structures, such as dams and related facilities that playa key role in flood control and water utilization on a basin scale Flood Disaster Prevention Division

The Flood Disaster Prevention Division conducts research on flood risk evaluation methods andschemes of reflecting the result in flood risk reduction planning, the use of flood hazard maps
or flood risk information, and flood risk reduction countermeasures integrating structural andnon-structural measures together with promoting both self-help and mutual assistance.

Sabo Department
 Research Coordinator for Sediment Disaster Prevention

Introducing facilities andresearch departments, etc.

23

(Eleven research departments, one research center,and three administrative departments)

With the influence of climate change and the imminence of massive earthquakes, thedepartment is researching ways to prevent and mitigate serious damage from frequent
sediment disaster hazards, such as sediment and flood damages, by improving the efficiency
and emphasis of countermeasures, early detection and damage prediction of large-scale
sediment movements, and upgrading warning and evacuation support information based ondata science, by taking into account recent sediment disaster hazards and new challenges.

 Sabo Planning Division

The Sabo Planning Division researches on the establishment of high-precision prediction
methods for the occurrence of sediment hazards; damage estimation for sediment and, flood
damages, and deep-seated landslides; and the establishment of response methods, as well as
the establishing technical standards for master plan for Sabo (erosion control), including
countermeasures against debris flow and driftwood.

 Sabo Risk-Management Division

The Sabo Risk-Management Division develops a large-scale sediment disaster monitoring
method using remote sensing and UAVs, and a method for upgrading sediment disasterwarning information based on a database.

Road Structures Department
 Research Coordinator for Road Structures
The Road Structures Department conducts research on better design, execution, andmaintenance and management methods for road structures, and technological standards that
achieve these, so that road networks can appropriately perform their functions, such as
ensuring safe and smooth traffic and supporting social and economic activities of all kinds plus
emergency response to disasters.

 Bridge and Structures Division
The Bridge and Structures Division conducts research on design standards to ensure thequality of execution in order to create good quality, highly durable road bridges and rationalroad bridge maintenance methods to economically prolong the service lives of bridges.

 Foundation, Tunnel and Substructures Division

The Foundation, Tunnel and Substructures Division conducts research on the required
performance, rational design, construction, and maintenance methods of road structures,such as road bridge substructures and foundations and tunnels, large culverts, retaining
walls, and other structures that are greatly impacted by the earth pressure of soil.

 Pavement and Earthworks Division

The Pavement and Earthworks Division conducts research on the required performance,
rational design, execution, and management methods of road structures, such asembankments in particular, slope countermeasures, paving, and other soft groundcountermeasures that ensure safe road functions.

 Earthquake Disaster Management Division

The Earthquake Disaster Management Division conducts researches on earthquake disaster
information systems, disaster management and the characteristics of earthquake groundmotions.

Building Department

 Research Managing coordinator for advanced Building Technology
 Research coordinator for Quality control of Building Research Coordinator for Disaster Mitigation of Building

In an effort to ensure the safe and pleasant use of buildings where living and economic
activities are carried out, we conduct research on standards for structures, fire safety,
equipment, materials, and members of buildings in compliance with the Building Standard
Law, systems for standards and certification, and performance assessment.

 Standards and Accreditation System Division

The Standards and Accreditation System Division conducts investigations, research onbuilding standards and certification systems, and helps facilitate general coordination with
the MLIT.

 Structural Standards Division

The Structural Standards Division conducts research on technologies such as building
structures, grounds, and performance evaluation methods related to seismic force etc. tosecure and improve the safety of buildings.

 Fire Standards Division

The Fire Standards Division conducts research on the assessment of evacuations and safety
performance of buildings etc. in the event of a fire, a fire suppression system to prevent firefrom spreading, and the securing of the fire-resistance performance of structures.

 Equipment Standards Division

The Equipment Standards Division conducts surveys, testing, and research concerning thebuilding equipment of buildings etc. and the maintenance, management, and protection ofbuilding equipment.

 Material and Component Standards Division
The Material and Component Standards Division conducts surveys, testing, and research on
materials and members of buildings etc.

 Evaluation System Division
The Evaluation System Division surveys and researches technologies for evaluating theperformance of buildings etc.

 Housing Planning Division

Research on the formulation of housing plans based on an analysis of trends in residential lifeand housing supply and demand, ensuring housing safety and security, building andstrengthening housing safety nets, and improving the performance and proper management
and the use of housing

 Housing Stock Management Division

Research on methods for identifying the actual condition of the housing stock and thesophistication and efficiency of maintenance and management, as well as research on
renovation technologies and ways to disseminate them to improve the housing stock andenhance its performance Building Environment Division

 Housing Production Division

Investigation of housing production and other building production, research on production
technology for rationalization of production, and research on technical and institutional
responses to ensure the safety of residences and the protection of consumers

Urban Planning Department

 Urban Planning Division

The Urban Planning Division is involved in research initiatives on advanced administration
standards of urban land use planning, such as performance zoning codes for quality ofenvironment, to promote such land use patterns that are compatible with functional activities
and sound residential environments.

 Urban Facilities Division
The Urban Facilities Division is involved in research on integrated urban facility management.
We improve survey methods through new technologies, in urban traffic management for
example.

 Urban Disaster Mitigation Division Urban Development Division

The Urban Development Division conducts research concerning urban development andimprovement methods toward the formation of safe and pleasant urban environments and theappropriate locations of urban functions, such as restructuring and renewal of built-up areas
and efforts that contribute to the development of compact cities.

Coastal, Marine and Disaster Prevention Department

 Marine Environment and Emergency Management Division

The Marine Environment and Emergency Management Division develops techniques forconservation, restoration and creation of marine environment ecosystems, research into theimplementation and evaluation of environmental monitoring, and research regarding how to
perform crisis management and continuous functioning in harbors.

 Coastal Disaster Prevention Division

Research on risk assessment of damage caused by storm surges, high waves, strong winds, andtsunamis; disaster prevention and mitigation through structural and non-structural measures;climate change adaptation measures; and maintenance and management of coastal protection
facilities.

 Airport Facilities Division

The Airport Facilities Division conducts research related to the development of outlines forthe design and repair of runways and taxiways etc. to contribute to high-quality airport
operations that ensure safe, on-time air transport.

 Airport Construction Systems Division
Research on integration and construction standards and operational support systems etc. forthe rationalization and advancement of construction related to the development andmaintenance of airports

Research Center for Infrastructure Management
 Research Coordinator for Construction Management
 Research Coordinator for Land Management and Disaster Prevention
 Research Coordinator for Advanced Information Technology
The Research Center for Infrastructure Management researches all construction production
processes, from the roles/effects of infrastructure development through todesign/construction/ inspection/maintenance and management/renovation, and the role ofinformation platform in supporting construction processes based on changes to the conditionsof society around social capital maintenance.

 Construction and Maintenance Management Division

The Construction and Maintenance Management Division conducts research into
policymaking and guideline maintenance etc. related to suitable and efficient service of
public utilities, including consideration of optimum bidding contract formats and businessexecution format in survey/design work and the supply of public works.

 Construction and Maintenance Systems Division

The Construction and Maintenance Systems Division conducts research into optimization/
acceleration of standards and systems related to public supply processes in design/
estimates/supervision/inspection required in proceeding with social capital maintenanceand the management thereof, as well as evaluation/reduction of construction costs etc.

 Advanced Construction Technology Division

The Advanced Construction Technology Division conducts research into the acceleration of
the building of construction machinery and other construction in order to save labor,
optimize and improve precision construction production systems, and focus on theconstruction stage in the construction production processes necessary for social capital
maintenance.

 Information Platform Division

The Information Platform Division conducts research into basic technology related to
information compilation, processing, and application through surveys, designs, construction,and inspections for the efficiency and sophistication of infrastructure development andmanagement.

 Construction Economics Division
The Construction Economics Division conducts research in order to clarify the roles andsocial economic effects of housing/social infrastructure supporting society/economy/living
based on grasping the circumstances and trends surrounding housing and social capital.

 Landscape and Ecology Division

The Landscape and Ecology Division conducts research in the fields of greening,conservation of living organisms and ecosystems, development and management ofgreenery and open spaces, and landscape and historical town planning with the aim ofcreating a society in harmony with the environment, including the creation of a sustainable
national land where nature and people can coexist in harmony, and the creation of a living
environment in which people can feel the richness of their lives

 Kumamoto Earthquake Recovery Division*

The Kumamoto Earthquake Recovery Division conducts research into
organization/standardization of expertise obtained at each stage (advanced technicalsupport, surveys, design, and construction) in recovery projects in the wake of the 2016
Kumamoto earthquake.
* Government office building established at the site of Kyushu regional development bureau
Kumamoto reconstruction project officeInternational expansion/
Public information activities

 Research Coordinator for Coastal and Marine Affairs
 Research Coordinator for Coastal and Marine Disaster Prevention
The Coastal, Marine, and Disaster Prevention Department researches the development of ocean
environment regeneration techniques, tsunami/flood tide damage assessment/disaster reduction
policies, and methods of utilizing coastal regions in a balanced manner with regions and societies
in order to make smart use of the land and sea areas of coasts and enhance disaster prevention
properties.

The Airport Planning Division conducts research on policy simulations, such as aviation
demand forecasting methods, analysis of aviation networks and demand trends, airport risk
management, effect of airports on local communities, and the introduction of advanced
technology into airport operations.

Beneficial use of field data

The Urban Disaster Mitigation Division is involved in research initiatives on disaster prevention
measures in built-up areas by developing advanced technologies, such as proactive mitigation
methods for spreading fire, planning of disaster prevention programs in urban areas, andevaluation measures for greenery and open space planning in terms of disaster prevention
performance.

 Airport Planning Division

Support for fieldtechnology improvement

The Urban Planning Department researches evaluation methods and technologies for thereconstruction of urban structures, improvement of the safety of cities, and the formation of urban
environments needed to create low carbon cities in order to create sustainable cities in the face ofchanging social conditions, such as a falling birthrate, aging of society, and the spread of global
environmental problems.

 Research Coordinator for Advanced Airport Technology
The Airport Department conducts research to facilitate policymaking to strengthen Japan’sinternational competitiveness and revitalize local economies; drafts standards to ensure risk
management, safety, and security; and develops efficient maintenance methods etc. in the
midst of the process of the deregulation of aviation.

Support for accident anddisaster response

Research on the improvement of the indoor environment (thermal environment, light/visualenvironment, air environment, etc.) and energy-saving performance in houses and buildings,
institutional measures for dissemination, and continuation of residence in times of disaster

Airport Department

Research and development

 Research Coordinator for Housing Performance Research Coordinator for Housing Information System
Research studies are being conducted on the safety and security of housing and residences,
housing stock measures, such as improving the performance of existing houses and measures
to deal with vacant houses, environmental and energy measures for housing and buildings, andrationalization of housing and building production with the aim of realizing safe, secure, andprosperous housing for people.

Organization

Housing Department

 Coastal Zone Systems Division

Port and Harbor Department
 Research Coordinator for Advanced Port Technology
The Port and Harbor Department meets the need for ports and harbors to strengtheninternational competitiveness and support the more enriched and safer lives of people byconducting research on improved port and harbor planning methods and designs while ensuring
quality and maintaining public works projects.

 Port Planning Division

At the same time as each department conducts its specialized research, interdepartmentalorganizations have been established to contribute to organizational flexibility and undertake
comprehensive interdepartmental activities.

 Climate Change Adaptation Research GroupThe Climate Change Adaptation Research Group conducts crossover research from theperspectives of flood control, water resources management, and river environment
protection for climate change adaptation.

 Environmental Research Committee
The Environmental Research Committee promotes the sharing of information concerning
environmental research and interdisciplinary research in this field.

 Port Systems Division

 Disaster Prevention and Reduction Research Committee Port Facilities Division

 Maintenance Research Committee

The Port Systems Division conducts research on seaborne cargo demand trends, thedevelopment of an international marine container cargo flow model, and cruise ship demand
trends.
The Port Facilities Division conducts research on advancing technology standards for necessary
port and harbor structures, such as breakwaters and quay walls, and the internationalizationand international expansion of related technology standards.

 Port Construction Systems and Management Division

The Port Construction Systems and Management Division conducts research related to
improvements in productivity by applying ICT etc. in the port field, effective maintenance andmanagement of port facilities, quality control of public works in the port field, and the use ofenvironmental goods etc.

The Disaster Prevention and Reduction Research Committee promotes the sharing of
information concerning research on disaster prevention and reduction, as well asinterdisciplinary research in this field.
The Maintenance Research Committee promotes the sharing of information concerning
research on maintenance and management, as well as interdisciplinary research in this field.

 Digital Transformation of Infrastructure Systems Research Committee

The Digital Transformation of Infrastructure Systems Research Committee promotes researchand development on digital transformation in the infrastructure field and disseminates
DX-related technologies in this field.

Introducing facilities andresearch departments, etc.

The Port Planning Division conducts research on analyzing worldwide maritime trends andport planning methods based upon such analyses, and analyzes ship movements using AIS.

Interdepartmental Organizations

Budget and employees

Analysis of trends in industrial sites and land use conversion in coastal areas and support andresearch on the establishment and evaluation of spatial formation and planning methods inorder to revitalize coastal areas

24

Organization

Introduction to facilities
Asahi Office Tachihara Office
Asahi Office and Tachihara Office are in Tsukuba city and numerous experimental facilities are deployed in the enormous compounds.

Research and development

Tachihara OfficeThis is a test course 6,152 m in length. Tests are carried out in relation to road running, safety, androad-to-vehicle coordination technology etc., and these are reflected in road-related technicalstandards, such as the Road Structure Ordinance.

Specifications□ Total length: about 6.2 km□ Number of lanes: 3

Tachihara Office□ Curve section

North loop design speed: 100 km/h
South loop design speed: 120 km/h

Support for accident anddisaster response

Asahi Office

Collision experiment facility
Front gate

Support for fieldtechnology improvement

Construction DX experimental field(outdoor experimental facility
for construction machinery)In this experimental facility, vehicles are crashedinto traffic safety facilities, such as protective
guard fences, to develop, improve, and examine
the functions of such traffic safety facilities.
Vehicles can accelerate unmanned thanks to thepower of winches.
The facility isused for theexperiments
necessary for therevision oftechnical
standards, such as
setting the strength performance of protective
fences and examining their structure andspecifications. It is also used for experiments by
the private sector for the development andimprovement of new types of protective fences.

Asahi Office

5 Full-scale tunnel experiment facility

Annex
研究本館
of the Main Research
Building
別館（7，8F）(7th and 8th floors)

Collision
衝突実験施設test facility
Indoor experiment facility for signs

Shared experiment building
for material structures
Shared experiment building
for hydraulic researches
Shared experiment building
for water quality and hydrology
Intelligent experiment building

Experimental facility for non-pole technology

9

Experimental wastewater
treatment facility

Marine and coastal experiment facility
Test course
ITS multi-environment
research building

Parts storage facility

Ni

A blockshRiver hydraulic experiment facility

iA
ve
n

ue

B block

Experimental channel for greening

D blockRiver model experiment facility

7

H block

200m

300m

500m

d

40

Full-scale tunnel experiment facility

Water quality experiment facility
Ci
rc

ul

ar

Greening experiment field

400m

oa

8)

10

* Buildings and lots other than those indicatedabove are those of the Public Works ResearchInstitute, Building Research Institute, and thePort and Airport Research Institute.
100m

lR

5

Experimental channel withlarge-scale embankment model andhigh flow velocity experimental channel

G block0m

atio

Experimental wave channel

Eブ
ロ
ッ
ク

Budget and employees

F block(Nna

C block

ch

an

ne

l
所

LegendVideos of various experiments
conducted at NILIM
and explanatory videos
can be found here.

閉

Research reference hall

Centralswitchingstation開Road foundation structure experimental facility

央

6

中

International expansion/
Public information activities

Bridge removal
橋梁撤去部材
materials

Gブ
ロ
ッ
ク

Beneficial use of field data

Full-scale tunnel experiment with a length of 700 meters and a sectional area of 45.5 m2, which isan unprecedented scale in the world, is used to perform a variety of experiments.
We conducted fire experiments on actual buses to grasp how the smoke flows. The findings of theexperiments were used for designing tunnel ventilation and fire control facilities and theexamination of operation standards.

Noise test facility

E block

Introducing facilities andresearch departments, etc.

25

Test course

1,000mRental of research facilities at the Asahi Office
Research facilities of NILIM can be rented for a fee by outside organizations within a range that
does not obstruct the operations of NILIM.
Inquiries: Planning and Research Administration Department, Research Facilities Division
TEL: 029-864-2674
Reference website: http://www.nilim.go.jp/japanese/nilim-pr/sisetuinfo/labo/ index.html

ITS Center Building
New traffic experiment facility* We also have a se

Organization

Yokosuka Office
Research and development

Yokosuka Office

Front gate Guard station

The main building was completed
in April 2004 and has a patio witha vaulted ceiling to allow naturalventilation and natural lighting toenter the research laboratory andother features that giveconsideration to protection of the
Earth’s environment, such as solar
energy generation and greeningof the rooftop.

Sotohatake

50m

100m

Support for accident anddisaster response0m

Aircraft load simulator
The aircraft load simulator with
one set of four-wheeled
landing gear the same size asthat of B747-400 aircraft is anapparatus for the evaluation of
bearing capacity and the
durability of airport pavements,
such as runways, taxiways, andaprons.

Typhoon experiment wind wave
channelThis is one of the largest wind tunnels in Japan,
where model tests of storm surges, high waves,strong winds, and tsunamis are conducted. Researchstudies are being conducted to protect large cities,
ports and harbors from natural disasters by using
wind blowers to generate typhoon winds and flow
generators to generate currents.

Parts of bridges, which were actually used, are used for research to study road bridge maintenancestandards and design and execution technology standards.
For example, the effect of repair andreinforcement work can be obtained byexamining the strength of a bridge
reinforced with cover plates.

This is used for hydraulic experiments
concerning shore protection in order to protect
the lives of people from the danger of storm
surges, high waves, tsunami, and coastal
erosion.

Road foundation structure

9 experiment facility

This facility reproduces damage to roads (such as
the generation of road surface bumps) and uneven
subsidence during earthquakes to verify roadtechnology that is resistant to grounddeformation.

10 Experimental channel with large-scale embankment model

7 River model experiment facility

 Hydraulic experiment on the reinforcement of slopes

16.0 k up to 19.0 k
can be reproduced.
Model scale: 1/40
Porous sheet

Togetsukyo
BridgeSlope pavement

Foundation work

Foundation ground
Silica sand No. 4

In normal times

Katsura River

In the event of heavy rainsModelediment and hydraulic experiment channel, a river hydraulic model experiment facility, a high flow velocity test channel, and a full-scale aeration test system.

Introducing facilities andresearch departments, etc.

 Experiment (Togetsukyo Bridge)

Katsura River

Budget and employees Overall view of the facility(Katsuragawa-Arashiyama District River Model Experiment Facility)

International expansion/
Public information activities

The experimental channel with a large-scaleembankment model uses models close to actual
size to study the external forces acting on river
structures, such as levees and their failure
mechanisms to study rational design methods forriver structures.
Crisis-management hard countermeasures(riverbank construction that slightly extends thetime until bank collapses), which reduce damage
even in the case of an overflow, are carried out
based on expertise etc. obtained from experimental
results using this overflow channel.

This is an enormous facility with an area of 15 hathat is outdoors. On the site, it is possible toinstall a maximum of 15 models of rivers.
For example, the river model experiment facility
in the Katsuragawa-Arashiyama District grasps
the hydraulic phenomena in the Arashiyama
District, where it is difficult to obtain data on
hydraulic phenomena because of thecomplicated land features, and whose
observation data are very limited, via hydraulicmodel experiments for use in implementing
flood measures.

Beneficial use of field data

Specimens cut out of dismantled bridge members

Support for fieldtechnology improvement

Oceanic and coastal
experiment facility

6 Dismantled bridge members

26

National Institute for Land and Infrastructure Management (Tsukuba) Asahi OfficeHigh Energy Accelerator
Research Organization

NILIM
Tachihara
OfficeM

Tsuchiura Kita IC

Public Works
Research Instituteito

National Research Institutefor Earth Science and Disaster Prevention
Sakuragawa

Tsukuba Botanical Garden

u
Gak
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University of Tsukuba Hospital

JR Tsuchiura
StationTsukuba Express

Doho Park

National Institute forEnvironmental Studies

Sakura-Tsuchiura IC

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JR Joban Line
Ueno Station About 60 minutesbaHighway BusTokyo Station
Yaesu South
Exit

Jo

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Me Inte ressp
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Yatabe IC

Entrance toGakuen Higashi
AvenueTsukuba
Station

JR Arakawaoki Station

Kantetsu Bus
To Tsukuba Center
Approx. 30 minutes

HitachinoUshiku
StationKantetsu Bus etc.
For Tsukuba Center or University of Tsukuba
About 70 minutes
Kantetsu Bus etc.
For Tsukuba Center

Ibaraki Airport
Haneda Airport
NaritaInternational
AirportJoban Expressway
Approx. 35 min

Shuto
Expressway

Tsukuba-Ushiku IC

ita ▶

Nar

Ueno

Asahi
OfficeTachihara
OfficePublicWorks
Research
Institute

Building
Research
Institute or
National Institutefor School
Teachers andStaff
Development

Get off
at bus stop

Get off
at bus stop

Kantetsu Bus

For Building ResearchInstituteor for Shimotsuma

Station

About 20 minutes
Taxi
About 15 minutes

Non-highway road
Approx. 30 minutes
Yatabe IC,
Tsukuba-Chuo IC, or
Sakura-Tsuchiura IC

Misato JCT

yo
Tok

Taxi
About 15 minutes

Tsukuba Express
About 45 minutes by Rapid Service

JR

Tsukuba J.C.T.

NILIM (Tsukuba)

Tsuku Bus Yoshinuma Shuttle
About 20 minutes

Kenkyugakuen
Station

About 49 minutes by Regional Rapid Service
Akihabara
StationNational Institute for Materials Science
Tsukuba Space Center
National Institute of Advanced
Industrial Science and Technology

MeteorologicalResearch Institute
Sasagi

Front gate
Building Research InstituteTransportation guide to NILIM (Tsukuba)

E

Tsukuba Centerven

Science Avenue

n

ba

Jo

r
xp

Public Works
Research
Institute

ay

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Tsukuba Center for Institutes

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Ak
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Tsukuba-chuo IC

Ts
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Tsu

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Tsukuba Station
Kenkyugakuen Station

Front gate

ito

M

Tsukuba University of Technology
Geographical Survey InstituteNational Institutefor School Teachers and Staff
Development(to Tsukuba Center)

NILIM (Tsukuba)

University ofTsukuba

National Institute for School
Teachers and Staff Development(to Shimotsuma Station)

National Institute for
School Teachers andStaff Development

Tsukuba Center (Platform 5)

Public Works
Research Institute1 Tachihara, Tsukuba City,
Ibaraki 305-0802 Japan
Tel: 029-864-3742

NILIM Public
Works
Research
Institute
Entrance

Building Research Institute

NILIM
Asahi
Office Tachihara Office

1 Asahi, Tsukuba City,
Ibaraki 305-0804 Japan
Tel: 029-864-2211

Tsukuba Express
http://www.mir.co.jp/
Kanto Testudo (Kantetsu Bus) http://www.kantetsu.co.jp/
Tsuku Bus (Tsukuba City Hall) http://www.city.tsukuba.lg.jp/

JR Hitachino-Ushiku Station

National Institute for Land and Infrastructure Management (Yokosuka)koYo Yokosuka Office

C

aI

ag

Ur

Front gate

a

m

ha

Kitakurihama Station
Shonan Bridge

Sotohatake

3-1-1 Nagase, Yokosuka City,
Kanagawa, Japan 239-0826
Tel: 046-844-5006

Uraga Port

Sahara Intersection
JR

Yo

ko

Sahara ICsuka

FunakuraLineTransportation guide to NILIM (Yokosuka)

maYokoha Roadka
YokosuKeikyu Line

Entrance to Iwato
Housing Complex

JR Kurihama Station

Meotobashi

Yo

JGSDF Camp
Kurihama

ka

su

ko

Keikyu Kurihama
StationYokosuka OfficePort and Airport
Research Institute

u

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in
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ay

-H

Kurihama

Ke

iky

Kaikoku Bridgeki

Yokosuka Office II

Kurihama Portisa

Kurihama
Flower Park

M

Shinagawa
StationYokohama
StationKeikyuKurihama
Station

JR Yokosuka LineTokyo
StationYokohama
StationFor Nobi Coast
KeikyuKurihama
Station Bus
Terminal

Kurihama
Station

Kaikoku
BridgeFor Chiyogasakior

For Uraga via
Chiyogasaki

Sotohatake

Five-minutewalk

Oneminutewalk

Ten-minute walkNaval Systems
Research Center

Yokosuka
OfficeYokosuka
Office II

Keikyu https://www.keikyu.co.jp/index.html

Aso City

National Institute for Land and Infrastructure Management (Kumamoto Earthquake Recovery Division)◎Ozu Town Office
amoto

Kum

IC Higo-Ozu

Mt. Aso57
TatenoSeta

Kumamoto
Earthquake Recovery
Division

28

Shirakawa

3574 Kawayo, Minamiaso Village,
Aso County, Kumamoto 869-1404 Japan
Tel: 0967-67-2039

How to get to NILIM (Kumamoto Earthquake Recovery Division)

Choyo
Kase

General road (via National Road 57,
Shin Aso Ohashi Bridge)◎Minami Aso Village Office
Tak
am
ori

Asoshimoda Station

Kumamoto Airport
moto

uma

iki K

Mash

IC
port

◎Nishihara
Village Office

Hakusuikogen Station

Nakamatsu

Air

KyushuExpressway

5km

10km
Green RoadNILIM logos

General road (via Prefectural Road 28)

Approx. 40 minutes
Mashiki Kumamoto Airport IC

Takamori

0km

Approx. 35 minutes
Kumamoto IC

Kumamoto
AirportGeneral road (via Prefectural Road 28)

Approx. 30 minutes■ Public transportation

Kumamoto
Earthquake
Recovery
Division(Bus: starts from JR Tateno Station)• Minamiaso Yurutto Bus: Five–minute walk from thefront of Minamiaso Junior High School

Sanko Bus Portal Site
https://www.kyusanko.co.jp/sankobus/

NILIM is the English acronym for the National Institute for Land and Infrastructure Management.
The triangle indicates that the former rivers, roads and related fields, the city, housing etc. and related fields, andports, and airports and related fields are linked to bear integrated housing and social infrastructure provision.
The orange color represents our expectations that the National Institute for Land and Infrastructure Management
will make many contributions to national land policy and create a bright Japan in preparation for the coming age of the
21st century.
Created in June 2021.