Ministry of Land, Infrastructure, Transport and Tourism
National Institute for Land and Infrastructure Management

NILIM

Damage to levees due to flooding

Survey of damage to bridges

Steel sheet pile thickness measurement

Survey of damage to houses caused by strong winds

Research Institute that createsthe society of the future2020
http://www.nilim.go.jp/

Mission of the National Institutefor Land and Infrastructure Management (NILIM)As the only national research organizationin the public capital/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

General Affairs Department

Accounting Division
Head Officer for General Affairs

Planning and Research Administration Department
Research Coordinator for Evaluation
Research Coordinator for Codes and Standard
Coordinator for Research Planning

Tachihara OfficePlanning Division
Research Administration and Evaluation
Division
Research Facilities DivisionInternational Research Division
Senior Officer for Cyber Security andInformation

Administrative Coordination Department
Research Coordinator for Information and Construction Systems

Planning and Coordination Division
Technological Information Division
Cost Estimation System DivisionInternational Coordination Division

Water Quality Control Department

Wastewater System Division

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

River Department

River 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 Division

Research Coordinator for Road Affairs
Research Coordinator for Road Disaster Prevention

Road Environment Division
Intelligent Transport Systems Division
Bridge and Structures DivisionRoad Structures Department

Foundation, Tunnel andSubstructures Division

Research Coordinator for Road Structures

Building Department

Standards and Accreditation System Division

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

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 2020.

Introducing facilities andresearch departments, etc.

i-Construction Research Committee

Maintenance 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

Pavement and Earthworks Division
Earthquake Disaster Management Division

Tachihara Office

Research Departments (11 departments + 1 center)

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

Water Cycle Division

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

DirectorGeneral

Wastewater and Sludge Management
Division

Support for accident anddisaster response

Yokosuka
OfficeAdministrative Division

Research and development

Head Officer
for General Affairs

Asahi Office

Administrative
Departments (3)Deputy Director of General Affairs Department
Senior Officer for Welfare
Senior Officer for Contract and National Property

Asahi
OfficePersonnel and Welfare Division
General Affairs Division

Organization

Organization

02

Organization

Research and development that supports the planning, drafting, and
The main research themes of NILIM in FY 2020

Research and development

1. Research to improve national resilience and protect the lives ・・・ 05 〜 10
and livelihoods of the people
2. Research to increase the productivity and growth potential・・・ 11 〜 12of society
3. Research to create affluent and comfortable communities and・・・ 13 〜 14
environments

Support for accident anddisaster response

P. 11 Improvement of productivity atconstruction sites using 3D models

Support for fieldtechnology improvement

P. 10 Development of diagnostic and monitoring technologies to extend
the service life of dams
P. 7 Protecting life and livelihoodfrom strong winds

Beneficial use of field data

P. 5 Protecting life and livelihoodfrom flooding

P. 8 Monitoring the behavior of infrastructureduring an earthquake for quick restoration

International expansion/
Public information activities

P. 12 Automation and labor saving using AI(e.g. sewage treatment plant operation)
P. 6 Quickly responding to damage to sewage treatment
facilities and protecting people's livelihoods

Budget and employees
Introducing facilities andresearch departments, etc.

03

P. 9 Responding to aging
transportation infrastructures
P. 14 Regional revitalization through thedevelopment of a new port town

P. 8 Ensuring the safety and security of
airports and port users

Organization

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

Research and development

P. 13 Support for rural cities through wide-area cooperationin urban functions

Budget and employees

P. 14 Visualizing the effects of barrier-free accessibility
to match residents with barrier-free accessInternational expansion/
Public information activities

P. 12 Realization of automated drivingwith support from infrastructure

Beneficial use of field data

P. 13 Regional revitalization through support for smart city
promotion

Support for fieldtechnology improvement

P. 10 Comprehensive management of sewerage pipelinesthat extend 12 times around the globe

Support for accident anddisaster response

P. 6 Protecting life and livelihood from sediment andflood damages

Introducing facilities andresearch departments, etc.

04

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.

05

1. Research to improve national resilience and protect the lifeand livelihood of the people(i) Research on weather disasters that are increasingly becoming more intense

１ Protecting life and livelihood from flooding

The levee breach in the vicinity of the 20.9-kilometer post on the left bankof the Yoshida River in the Naruse River System

The levee failure in the vicinity of the 104-kilometer post on the left bankof the Chikuma River

The research will contribute to the realization of a safer and more secure society against floods by developing levees
that are resilient and that protect people's livelihoods and by developing systems to communicate the risks of flooding.
 The effects of climate change, such as frequent heavy rainfall disasters, have become apparent in recent years.
 A notable example was Typhoon No. 19 (Hagibis) in 2019, which caused widespread and multiple floods at the same time.
 In addition to conventional countermeasures, it is necessary to prepare for major floods through both infrastructure and systems byimplementing crisis management measures in recognition of the fact that major floods that cannot be prevented by facilities will inevitably
occur.

Research on strengthening levees as crisis management
 Development of more effective and efficient countermeasures based on the status of the construction of countermeasures to make astructure robust (crisis management type countermeasures through infrastructure) and examples of damage.
<Cross-sectional view of a robust levee>
Asphalt

Urban area

Levee top protection work

Levee body

RiversFoot of slope reinforcement work
 Since the levee top and bottom are most likely to be destroyed in theevent of water overflow, these areas should be reinforced to makethem less likely to break.

Levee body
Confirmation of the effectiveness of the levee top protection work

Visualization of flood risk using flood risk lines
 Development of technology and systems to communicate flood risk (e.g.
the risk of river flooding and the degree of imminence) in real time and in aneasy-to-understand manner to encourage accurate decisions and actions toevacuate in the event of a flood<Example of flood risk line> Displaying color-coded lines on the map at hundreds of meter intervals
along the river according to flood risk

(River Department)

This research contributes to the prevention and reduction of damage by suggesting effective placement methods ofSabo(sediment control) facilities and the rapid identification of damaged areas by developing methods for identifying
the location of sediment disasters using satellite images.

Early detection of sediment and landslide disasters using SAR images

 Technical guidelines were prepared, which includes the concepts
and methods to analyse the effective placement of erosion control
dams (i.e. sabo dams) by identifying tributary areas that make asignificant contribution to riverbed fluctuations near thedownstream protection target through numerical simulations.

 By processing SAR images (radar images) obtained from satellites,a demonstration experiment is carried out to improve speed andaccuracy and to propose a better method for early detection of
sediment and landslide disaster sites.
<Changes in the slope surface before and after sediment disasters are represented with colors.>

Downstream
protection target
Planned reference point

With plannedsabo dams in River E
erWith plannedsabo dams in River C

DRiver A

Riv

er

River BE

Decrease in the amountof sediment passing
through the planned
reference point due tocutting the amount of
sediment discharged
from River ABlue

No change in reflected waves

Example:Rice paddy
field
Smooth ground/slope surface

Without any plannedsabo dams
V

River C

V
V

VV

V
V

VV

V

Pre-sediment disaster:Rough↓
Post- sediment disaster:Areas that changed tosmooth surfaces

No change to the slope surface
before and after the sedimentdisaster

Increase in reflected waves
on the satellite side

With plannedsabo dams in River A

Red

White

Pre-sediment disaster:
Smooth↓Post-sediment disaster:Areas that changed torough surfaces

Example:sediment
soil deposit
Rough ground/slope surface
V

V
V

VV

V
V

VV

Decrease in reflected waves
on the satellite side
Example:ForestRough ground/slope surface

Example:failed oreroded slope
Smooth groundsurfaceV(Sabo Department)

responding to damage to sewage treatment facilities and protecting people's
３ Quickly
livelihoods

Research on measures for securing sewage treatment functions at the time of emergency restoration<Sewage overflow from a sewage treatment plant
inflow conduit>

Budget and employees

 Because of flooding caused by Typhoon No. 19 (Hagibis) in 2019, a sewage treatment plant was
submerged and its treatment function was lost.
 It is necessary to establish simple treatment operation and management methods for staged
restoration of sewage treatment plants as soon as possible, while ensuring the minimum
functions of the plants to prepare for an event of similar damage in the future.
 The appropriate disinfection method for overflowing water, the operation and management ofsimple treatment after a disaster etc. were clarified and organized through experiments using
actual sewage.
〇 Target water quality for simple treatment<Image of a simple process for staged
recovery immediately after a disaster>Disinfection
Biological
Precipitation treatment Precipitation

Simpleprecipitation
system
BOD
120 mg/L or less

<Simple disinfection>
Biologicaltreatment using asimple system
BOD
60 mg/L or lessInstallation of asimple disinfectiontankTotal coliform
count - below 3,000

Biological treatment
with simple aeration system

Water
pumping

Immediately after a disaster, the sewage treatment function
is lost due to submersion etc.

Precipitation Biological Disinfection
treatment
Example of staged recovery with simple treatment

Simple disinfection<Biological treatment with simple system>tank(Water Quality Control Department)

Introducing facilities andresearch departments, etc.

Water pump

Simple water
pump

International expansion/
Public information activities

This research contributes to maintaining a sanitary living environment by providing simple sewage treatment evenwhen sewage treatment facilities lose their functions immediately after a disaster and untreated sewage overflows.

Beneficial use of field data

Area where the color changed to blue or red after combining= Locations where sediment and landslide disaster may have occurred
Area where the color changed to white= Locations where no sediment and landslide disasters are estimated to have occurredSupport for fieldtechnology improvement

Riv

Color composite of radar images from before a sediment disasterand immediately after the disaster↓
Estimating changes in the slope surface based on the color of the composite image

Amount of sedimentthat passes the planned reference point

Support for accident anddisaster response

A study on the layout plan of sediment and flood damages control facilities

Research and development

 In 2019, Typhoon No. 19 (Hagibis) caused the largest-ever number of sediment disasters associated with the typhoon. As seen in this case,sediment disasters have been occurring simultaneously over a wide area in recent years.
 Expansive damage was caused by sediment and muddy water washed into residential areas downstream.

Organization

２ Protecting life and livelihood from sediment and flood damages

06

Organization

４ Protecting life and livelihood from strong winds
This research contributes to the realization of a safe and secure lifestyle that is resistant to wind damage by studying
the strengthening of the joints in building exteriors, sufficient measures for lashing containers, and the creation ofstreet spaces without utility poles.

Research and development

Research to contribute to the improvement of wind resistance of building exterior materials and roofs
 The strong winds of Typhoon No. 15 (Faxai) in 2019 damaged the exterior of buildings (roof tiles, fittings, and glass at openings, etc.) andwooden roofs.
 Improving the wind resistance of exterior materials and wooden roofs is an urgent issue.

Support for accident anddisaster response Interviews and other surveys of damaged buildings are conducted to determine the actual damage.
 The following (i) to (iii) were studied to clarify the performance of exterior materials and wooden roofs against strong winds and to ensure
and improve wind resistance. The results were used to create technical documents (e.g., guidelines) to supplement the Building Standards
Act.
(i) Development of a strength test and evaluation method for joints of outdoor fittings (sashes)(ii) Review of current guidelines for roof tiles(iii) Development of specifications for the roof sheds of wind-resistant wooden roofs<Building damage caused by a typhoon>

Support for fieldtechnology improvement
Beneficial use of field data

Inside a store with damage to the roof and exterior materials

International expansion/
Public information activities

Wind resistance measures for containers

Research to speed up zero utility pole projects

 Containers collapsed in port areas during Typhoon No. 21 (Maymay)
in 2018 and No. 15 (Faxai) in 2019.
 Measures to prevent the collapse of containers during typhoons andother strong winds are important.

 Typhoon No. 21 (Maymay) in 2018 and other strong wind conditions
have caused utility poles to collapse, which further increased themomentum to eliminate utility poles.
 Speeding up and reducing costs are essential to accelerate the shift
to no-utility pole systems.

 A quantitative method of calculation is proposed to evaluate thewind resistance performance of containers based on how container
models are stacked and lashed by setting three cases of tiers (three
to five tiers), three cases of stacking patterns, and four cases oflashing patterns.

 Research on methods for smooth consensus building in planningand implementation
 Research on improving the efficiency of construction
 Reflected in technical reference books for consensus building andconstruction efficiency improvement< Collapse of containers caused by typhoons ><Stacking pattern> Three cases

Budget and employees

Rectangle

Pyramid-type

Introducing facilities andresearch departments, etc.

Leeward< Damage caused by typhoons >Corner-cutting< Collapse experiment using container models >< Lashing method > Four cases07

A house with a damaged roof shed

[ Shinge, Sennan City, Osaka ][ Okubo-cho, Moriguchi City, Osaka ]< Image of wires and other equipment buried in the ground >Windward

No lashing Vertically lashing

Collapsed toward the windward

Horizontally Vertically andlashing horizontally lashing(Building Department, Coastal, Marine and Disaster Prevention Department, and Road Traffic Department)

(ii) Disaster prevention and mitigation against earthquakes etc.

Development of a system for the immediate detection of damage to critical infrastructures and a strong-motion monitoring system< Outline of the Strong Motion Monitoring System >Monitoring site

seismometer

Reception
natural groundBasestationTransmission
Internetnatural ground Strong motion monitoring system (left) for the entire
infrastructure system using wireless communication
 Development of an instant damage detection function
to detect and report the damage caused by anearthquake etc.

Internet
Reception< Put the seismometer >Monitoring of the seismic
response of the entire
bridge system

Office(Road Structures Department)This research contributes to ensuring the safety and security of airport and port users by developing a method toquickly inspect airport pavements immediately after a disaster, and by building a system to track the current position ofwork vessels.

 In order to ensure the continuation of port functions after alarge-scale disaster, it is essential to make rapid decisions on theavailability of work vessels for reopening of navigation channel
and emergency recovery of port facility.
 Development of a system to track the current position of working
vessels and automatically detect anchor dragging and drifting Exploring ways to improve the accuracy of detecting anchor
dragging and drifting and utilize the system for immediate
assessment of situations upon the onset of a disaster< Image of an inspection using an oscillating roller >< System overview >Automatic Identification System (AIS) reception station at each port

Verticaloscillation

Running

No cavity

Working vessel

Presence of a cavity

NILIM
Interruption

Interruption

Communicationand coordination Disaster Management

Maritime construction company etc.

Headquarters(Regional Development Bureau etc.)(Airport Department, Harbor Department)

Introducing facilities andresearch departments, etc.

CavityBudget and employees A simple and rapid method was developed to detect the loss ofthe bearing capacity of airport pavements due to cavities
created by liquefaction by measuring the vertical acceleration ofoscillating rollers running on airport asphalt pavements.

Advancement of real-time management systems for work vessels

International expansion/
Public information activities

Research on the bearing capacity evaluation of airport pavements
under earthquake disaster When liquefaction occurs in an airport, it is desirable to be able
to easily and quickly confirm the existence of cavities
underneath the airport pavement without the use of special
equipment.

Beneficial use of field data

２ Ensuring the safety and security of airport and port users

Support for fieldtechnology improvement

Automaticrecording during
an earthquake

Support for accident anddisaster response

Wireless
communication

 The efficiency of inspections immediately after anearthquake must be improved.
 It is necessary to clarify the behavior of the entire
infrastructure system and develop design methods andcountermeasures based on the results.

Research and development

By developing a monitoring system for the behavior of critical infrastructures (such as bridges) during earthquakes, thisresearch contributes to rapid restoration through the immediate detection of damaged areas.

Organization

１ Monitoring the behavior of infrastructure during an earthquake for quick restoration

08

(iii) Infrastructure maintenance and management
Organization

１ Responding to aging transportation infrastructures

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.

09

Direct diagnosis of concrete bridges

Inspection of wave dissipation work (settlement measurement)

Direct diagnosis of steel bridges

Inspection of steel sheet piles (columns supporting the quay)in the water (measurement of wall thickness)

Based on the results of legally required inspections of road bridges and port facilities, this research will standardize morereasonable repair/reinforcement design methods to contribute to more efficient and effective inspections and repairs.
Development of next-generation technical standards
that enable the use of various inspection and monitoring technologies
and repair/reinforcement technologies
 Legally required road bridge inspection every five years started in FY
2014.
 The first stage ended in fiscal year 2018.
 Improving the quality of periodic inspections, streamlining theinspection process, and extending the service life of road bridges are
essential to preparing for further aging and intensifying natural disasters.
 The legally required inspections moved to the second stage in fiscal
year 2019.
 Preparation of reference materials to promote the introduction ofvarious new technologies for periodic inspections and monitoring.
 Research was conducted to establish technical standards for repair
and reinforcement so that reasonable repair and reinforcement could
be carried out.
<Deterioration of members
for repair and reinforcement>

Schematic and effective maintenance and managementof harbor facilities
 Quays are exposed to severe environments, such as salt damage, and
it is difficult to ascertain the deterioration and damage of underwater
areas.
 The establishment of maintenance plans is mandatory.
 Utilization of a database of maintenance and management history for
efficiency improvement and reducing labor Accumulation of data enables the prediction of changes anddeterioration of facilities.
 An information provision system that utilizes accumulated data anddeterioration prediction information was developed to help makedecisions on inspections, repairs, and usage restrictions.
< Deterioration of harbor facilities >< Examples requiring improvementof the quality of periodic inspections >Subsidence of quay aprons

Corrosion of steel pipe piles< Outline of the information provision system that contributes
to decisions on inspections, repairs, and restrictions on use >Breaking through a floor slab reinforced with a cover plate▼ Data input• Basic information of facility, result of periodic inspections and diagnoses (e.g. deteriorationlevel a to d)▼ Data output

Corrosion of the area reinforced with a cover plate

For suspension bridges, identification of
the condition of cables under the covering
is expected.

• Provision of information on similar cases (left)• Provision of information on the location ofdeterioration• Provision of information on the timing of
repairs• Provision of LCC information (right)

Facility B X years passed

Result of inspection
and diagnosis(Cost)

Facility A X years passed
Information about the accident(Number of years)(Road Structures Department, Port and Harbor Department)

This research contributes to the realization of efficient and effective inspections and repairs by developing methods forselecting inspection and investigation technologies that match the actual conditions of cities and proposing methods
for optimizing maintenance and management through the use of information.

 The stock of sewerage pipelines is huge, amounting to approx. 480,000 km at the end of fiscal year 2018. The number of old pipes that havebeen laid down for 50 years is expected to increase at an accelerated rate, and the number of pipeline facilities to be reconstructed for the
first time is expected to increase rapidly.
 Approximately 3,300 road collapses occur each year due to aging sewerage pipes etc., but only about 30% of cities carry out inspections andsurveys. And with the number of sewerage workers decreasing, there are issues with the enforcement system and other situations.

< Inspection and investigation machine that has gone
through multiple stages of development ><Accidents due to the aging of pipelines>

Advanced image recognition technology<Cleaning test of hard bitumen pipes>
Sewer pipe explosion

Cavity exploration (under verification)

３ Development of diagnostic and monitoring technologies to extend the life of dams
By developing nondestructive methods to visualize the internal conditions and by proposing methods of utilizing satellitedata, this research contributes to the efficiency of the safety management and life extension of large-scale dam structures.

 Visual inspection from the surface and various types of measurements are the basics. Still, there are some difficulties unique to dams, such as
the large inspection area and the difficulty of working at high elevations, and the large number of objects to be managed including the dam
body, discharge facilities and reservoir slopes.
 By using only conventional methods to investigate the condition of the dam body, such as surface surveys and core sampling, there is a limit
to the ability to understand the condition of the dam body itself, including the inside of it.

< Diagnosis and monitoring using new technologies >< Basic inspection method >Measurement of dam body displacement using satellite SAR
Settlement

Upheaval

Aerial photo

Visual inspection＋

Upstream(Reservoir side)

Cross-section of a dam body

Monitoring of the amountof leakage water

Displacement measurementof an embankment dam(survey reference point)

Identification of the distribution of the settlement of an embankment dam
due to a strong earthquake

Identification of cracks and other deformities
by measuring reflected waves andpropagation velocity(River Department)

Introducing facilities andresearch departments, etc.

Displacement measurement of
a concrete dam inside the dam body

Investigation of the inside ofthe dam body using elastic waves

Budget and employees The use of satellite data allows the identification of changes (displacement) in the surface of a whole dam body and the wider area aroundthe dam including reservoir slopes.
 Technology for nondestructive tests to investigate the condition of invisible area such as inside the dam body is being developed usingelastic waves and other techniques.

International expansion/
Public information activities

Development of technologies to diagnose and monitor the soundness of dam structures for their life extension

Beneficial use of field data

(Water Quality Control Department)

Support for fieldtechnology improvement

Collapse of the road due to damaged sewer pipes

Wide-angle camera

Support for accident anddisaster response A selection method for inspection and investigation techniques based on the actual conditions of a city, such as installation conditions andtypes of pipe materials was developed (e.g. identifying and prioritizing accident-prone areas for inspection).
 Based on the results of surveys and the characteristics of repair and reconstruction methods (performance and construction), the mostappropriate repair and reconstruction method is proposed using maintenance and management information.

Research and development

Total management of sewer pipelines

Organization

２ Comprehensive management of sewerage pipelines that extend 12 times around the globe

10Organization

2. Research to increase the productivity and growth potential of society
１ Improvement of productivity at construction sites using 3D models

Research and development
Support for accident anddisaster response
Support for fieldtechnology improvement

3D model of a bridge from point cloud data

The development of 3D models improves the efficiency of construction and maintenance management in a wide
range of fields, including bridges, riverbanks, harbors, and buildings, and contributes to improvements in the
productivity of construction sites.
Research and development of BIM (Building Information
Modeling) for public housing construction projects
 BIM (*1) is created on a computer with 3D shape information andproperty information of the building.
 Researching the effects of introducing BIM to housing projects andcreating draft guidelines for the use of BIM.

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

11

Point cloud data

3D modelMass model thatshow a building's outline
and housing unit layout.

Development of CIM introductory guidelines (port)
 We developed a draft of the CIM (*2) introductory guidelines (port)
and created drawings of the CIM models for the breakwater andquay (sheet-pile type) as port facilities following the pier.
<CIM model (breakwater)><CIM model (sheet-pile quay)>< Image of a pier construction
simulation model ><CIM model (pier)>

Equipment model containing
piping and other information

Recording and storage of information necessary for maintenance and management after repairs
 Research on how to record and store the information of thedamage and repairs< Information management with 3D model >Free lime (inner surface of box girder)

Crack (inner surface of box girder)

 A proposal for a method of recording and storing information using
a 3-D model is created assuming that the information will be usedin maintenance and management.
 For example, it is expected to make it easier to recognize thelocation of cracks (right).

Crack (outer surface of box girder)
Cross-section of box girder
Carbon fiber sheet (outer surface of box girder)*1 Abbreviation of Building Information Modeling*2 Abbreviation of Construction Information Modeling(Housing Department, Port and Harbor Department, Research Center for Infrastructure Management)Organization

２ Automation and labor saving using AI
This research contributes to the realization of a society where work is automated and saves labor through thedevelopment of methods for operating sewage treatment plants and monitoring traffic volume using AI.

 Comparing conventional operations performed by skilled technicianswith those performed by AI, the possibility of AI, ensuring reliability
for practical use, and methods for introducing AI were verified.
< Flow of sewage treatment plant operation by AI >< Operation by skilled technicians >< Operational flow by AI >AI technologies which contributeto automation and labor saving

Value

Output result (offline)

Detection ofmoving object• Knowledge• Experience

Measured value
Malfunction• Visualization of the behavior of skilled technicians• AI derives setup values and amount of operation

AI server

Comparison withactual operation(iii) Abnormality response
determination AI

Abnormal event

CCTV

and
Data accumulation Analysis Forecasting
decision making

Revision andrelearning

Car type classification→ Volume observation(Water Quality Control Department, Road Traffic Department)* Abbreviation of closed circuit television

By conducting demonstration experiments through public-private partnerships in hilly and mountainous areas andairports, developing a mechanism to provide information to vehicles, and developing traffic simulation models, thisresearch contributes to the realization of automated driving.
Research toward the promotion of automatization of vehicles
that support airport operations

 Information ahead that cannot be detected by a car sensor needs tobe provided from the roadside.

 An increase in demand for air transportation due to increased
inbound tourists
 Shortage of labor associated with a declining productive-age
population

 Development of a system to detect and provide information on
traffic conditions of the main line at merge points

The system provides information, suchas the traffic speed of vehicles on themain line, to merging vehicles.

<Image of research>
Acquisition of location data from GPS
A traffic flow simulation model is developedby identifying traffic conditions
within an airport.

✈
Link it to the spotting
in/out of airplanes

Vehicle detection sensor
Information on vehicles on
the main line, such as
driving speed, is identified.

Demonstration experiment on automated driving at airports
In FY 2019, demonstration
experiments on automated driving
were conducted at four airports,
including Tokyo International Airport.

Observer

Demonstration experimentat Tokyo International Airport (2019)(Road Traffic Department, Airport Department)

Introducing facilities andresearch departments, etc.

Information to be provided toa merging vehicle (automateddriving vehicle) is generated.

✈

Vehicle to Infrastructure Communication

Budget and employees< Image of merge assist service >Development of traffic simulation models for airports
 Safety and efficiency assessment
 Examination of facilities required Examination of the rules to operate autonomous vehicles etc.

International expansion/
Public information activities

Technology development toward the practical use ofnext generation cooperative ITS

Beneficial use of field data

３ Realization of automated driving with support from infrastructure

Support for fieldtechnology improvement(ii) Image
processing AI

Image(when necessary)
additional learning

Pre-learning through deep learning✓ Derivation of theamount of operation✓ Decision on processing
status
Suggestionof response✓
method(i) Operation AI

Processing status< Flow of CCTV AI observation >Support for accident anddisaster response

Input data

Operation log /Water quality analysis

 AI analysis is introduced to existing CCTV (*) to achieve a low-cost
system for constant traffic volume observation

Image
observation✓ Detection of abnormality based on✓ Determination of abnormality based on
accumulated data
data
determination of processing status✓ Visual checking of on-site conditions With AI ✓ Automatic
based on images✓ Identification and judgment of causes✓ Automation and visualization of cause
based on experience
identification and decision making

New traffic volume survey using CCTV and AI

Research and development

Automation and labor saving of sewage treatment plant operation using AI

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 create affluent and comfortable communities and environments
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.
Development of evaluation method for smart city plan in solving major urban problems to support its promotion
 The theme of smart cities has become multifaceted in the areas of transportation, livelihood support, disaster prevention, crime prevention,and tourism, and new technologies have become more diverse.
 However, because 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 new technologies in solving urban problems have not been established,support is needed for local governments to examine the direction of smart 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 was developed.

*What is a smart city?
A sustainable city in which management (planning, development,
management and operation, etc.) is carried to address various issues
that the city is facing by utilizing new technologies, such as ICT, toachieve optimization in the overall aspects.

< Example of using new technologies in smart city initiatives in and outside of Japan >Density of postings indicating the heat
Many

Base map© OpenStreetMap contributors

FewTransport, crime prevention,
Transport and livelihood support Maintenance and management,
disaster restoration, anddisaster management, and environment(automated driving bus)
(CCTV [Incheon City in South Korea])
livelihood support (drones)

Environment and tourism(heat map based on SNS data)(Urban Planning Department)

２ Support for rural cities through wide-area cooperation in urban functions
By creating a guideline to support the formulation of plans for wide-area coordination (*), this research supports thepromotion of wide-area coordination of urban functions and contributes to reducing the burden on local finances tomaintain urban functions.
Research on wide-area coordination of urban functions in rural cities*What is wide-area coordination?
The development and provision of administrative services
and other services through collaboration and sharing ofresources among multiple local governments< Example of “a hospital redeveloped as the integration of a bus terminal” > In rural cities, where populations are rapidly shrinking,individual local governments are facing difficulty inmaintaining high quality urban functions.
 Therefore, multiple local governments work together
and share costs to provide high quality urban functions
to their residents.
 A problem, on the other hand, is lowered accessibility
and convenience due to the consolidation of facilities.
 Compilation of cases on wide-area coordination in urban
functions Compilation of methods for examining measures toimprove the convenience of intercity mobility
 These are reflected in the guideline for preparing site
optimization plans based on the Act on Special Measuresconcerning Urban Reconstruction.

A hospital with advanced medical functions was redevelopedin the center of a city using the wide-area coordination system.
↓
Travel to the hospital became inconvenient for patients living in distant areas.
↓
The accessibility was improved by integrating the hospital with a bus terminal.

(Urban Planning Department)

This research contributes to the revitalization of waterfront areas and regional areas through developing spatial composing
and planning methods that are keys to the waterfront redevelopment.

 The revitalization of waterfront areas is the core of regional revitalization in a society with a declining population.
 On the other hand, regional resources in waterfront areas, such as seaside spaces, are valuable assets to them, but they are not fully
utilized at the present.
 Regional invigoration measures that utilize the regional resources of coastal areas are necessary to increase tourists and visitors< Example of waterfront utilization >< Image of a new waterfront areas >Cooperation and networking of the regional resources of the waterfront area andbackground regions

Train station

Revitalization and Utilization of regional resources and existing stocks of the sea andports, and Harbors including the seaside spaces (water surface, waterline, and spaces
facing the water)

Improving the value and attractiveness of a region as waterfront areas

Increase in the settled populationand the exchanged population

Utilization of space on seawalls

４ Visualizing the effects of barrier-free accessibility to match residents with barrier-free accesses
By establishing a method for visualizing the barrier-free effect of housing, this research evaluates its performance andcontributes to the provision of an appropriate barrier-free environment that suits the conditions of the occupants.

 In recent years, there has been significant progress in making new barrier-free housing. On the other hand, it is also necessary to promote
the barrier-free renovation of existing houses. Yet, the effect of barrier-free housing, which is a comprehensive evaluation of the degree of
reduction in the burden of daily life activities taking into account the cost of the renovation, has not been clarified.

< Monitoring survey >Wearing a simple physicalactivity meter and smartphone

Self-propelled wheelchair

Going up and down stairs(Housing Department)

Introducing facilities andresearch departments, etc.

Activity measurement(use of a vacuum cleaner)< Measurement of the physical activity >Budget and employees The barrier-free performance of housing is evaluated by visualizing the ease of activities in the living environment using the amount ofphysical activity (how much a person usually moves) as an indicator.
 Monitoring surveys and physical activity measurements are conducted, and proposals are made to policies for effective housing
renovation methods tailored to the characteristics of users.

International expansion/
Public information activities

Establishment of a method for visualizing the effect of providing barrier-free facilities that suit different life stages

Beneficial use of field data

(Coastal, Marine, and Disaster Prevention Department)

Support for fieldtechnology improvement

Occupation use and utilization of water surface

Support for accident anddisaster response A guideline for research, planning, and spatial composing methods for the waterfront redevelopment with new approaches will be
developed.
 The waterfront redevelopment is promoted while supporting local projects and discussing and studying with experts.

Research and development

Promotion of the waterfront redevelopment with new approaches

Organization

３ Regional revitalization through the waterfront redevelopment with new approaches

14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.

15

Advanced technical support for response to disasters/accidents
Results from dispatch of TEC-FORCE by NILIM during the past three years
When a disaster occurs, in response to requests from the disaster region, NILIM sends its own researchpersonnel with advanced 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 the region.
In recent years, we dispatched experts to areas hit by torrential rains in northern Kyushu in FY 2017, torrential
rains in July 2018, the Eastern Iburi earthquake in Hokkaido in 2018, and Typhoon Nos. 15 (Faxai) and 19 (Hagibis) in
2019, among others.
* Technical Emergency Control Force: Team dispatch system established in FY 2008 by the Ministry ofLand, Infrastructure, Transport and Tourism in order to respond to a large-scale natural disaster by
surveying disaster damage and providing local governments etc. in the disaster regions withtechnical assistance.

○ Dispatch history
FY 2019: 8 disasters
156 person-day
FY 2018: 15 disasters
215 person-day
FY 2017: 11 disasters
91 person-day

2018 Hokkaido Eastern Iburi earthquake(September 2018)
Atsuma and other areas in Hokkaido○ Legend
Solid line:

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

Damage survey from a helicopter[Typhoon-caused disasters in 2019]

Heavy rain in Northern Kyushu(Jul. 2017)(Typhoon No. 15 (Faxai) and No. 19 (Hagibis))
Minamiboso City, Kyonan City, and Tateyama
City, Chiba
Tomioka City, Tsumagoi Village, Agatsuma
County, Gunma
Marumori Town, Miyagi and Mito City, Ibaraki
Fukushima City, Motomiya City, Kooriyama
City, Iwaki City, and Kunimi Town, Fukushima
Nagano City, Ueda City, and Saku City,
Nagano, and other locations

Asakura City, Fukuoka Prefecture, etc.

Survey of Kagetsu River

Status of sewage purification center surveys

Typhoon Jebi (Sept. 2018)(Typhoon No. 21 (Maymay))

Osaka City, Osaka, and Kobe City, Hyogo

Heavy rains in July 2018
Fukuchiyama City, Kyoto; Kurashiki City, Okayama; Hiroshima City, Hiroshima; Matsuyama City, Ehime, and other locations

Nishinomiya City, Hyogo, and Wakayama City,
Wakayama, and other locations

Survey of coastal damage causedby storm tide and other impacts

Damage investigation of an inundated water treatment facility

On-site investigation of a landslide damOrganizationand improvement of countermeasure techniques
Technical support for the damage caused by Typhoons No. 15 (Faxai) and No. 19 (Hagibis) in 2019

 Investigation of damage to bridges, sewerage facilities, wooden buildings, etc. caused by flood inundation and sedimentand landslide disasters
 Identification of the status of emergency responses and technical advice on emergency recovery efforts and other aspects

Research and development

Typhoon No. 15 (Faxai) (Boso Peninsula Typhoon of 2019) occurred in September 2019 and Typhoon No. 19 (Hagibis) (East Japan
Typhoon of 2019) in October 2019. Responding to requests from the Ministry of Land, Infrastructure, Transport and Tourism (MLIT),
Regional Development Bureaus, Miyagi Prefecture, Nagano Prefecture, Ibaraki Prefecture, and Chiba Prefecture, officials were dispatchedto the affected areas immediately after the disaster to provide technical support.

Support for accident anddisaster response

On-site investigation of landslide disaster in Tomioka City

Minimization of Information blank time After an earthquake
In the event of a large-scale earthquake, we make effective use of existing facilities, such as CCTV cameras and satellites, andthereby contribute to the prompt acquisition of extensive information. We contributed to the identification of conditions after theearthquake in Eastern Iburi, Hokkaido, in September 2018 and the earthquake off the coast of Yamagata in June 2019.
■ SAR image interpretation support system■ List of CCTV cameras
Prompt view of situations through the extraction Helicopter survey in areas selected basedof cameras in areas of high seismic intensity
on interpreted outcomes
Color composite SAR image

0

±
1

2

4

6

8

10
km

Peak response acceleration (m/s2)

Satellite image (SPOT6)

0© JAX A

±
1

2

4

6

8

10
km

© Airbus D S/S pot I m age 20 1 8

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

Natural period (s)Restoration support for the Kumamoto earthquake in 2016 - Opening of the Tawarayama Tunnel Route■ Verification of the effect of repair■ Restoration of Tawarayama Bridge
Temporary bridge being removed

Cargo (vehicle) loading status

Tawarayama Bridge during restoration work

Tawarayama Bridge when the restoration work was completed

Introducing facilities andresearch departments, etc.

Explanation of test results to
Kumamoto Prefecture

Budget and employees

In April 2017, the Kumamoto Earthquake Recovery Division was established for the first time at a disaster recovery site by NILIM inorder to accelerate restoration efforts after the Kumamoto earthquake. In 2019, the restoration work at Tawarayama Bridge andOkirihata Bridge on the Tawarayama Tunnel Route (prefectural road) was completed, and the use of the same route as before theearthquake was resumed in September 2019.

International expansion/
Public information activities

MukawaHayakita
OiwakeHobetsu
Horokeshi
Monbetsu
Chitose
Shikotsu lake shore
Tomakomai
EbetsuMajor past earthquakes
Damage border

Beneficial use of field data

■ Spectrum analysis information
By comparing the damage line, the scale ofdamage is quickly estimated.

Support for fieldtechnology improvement

Investigation of Hounji Bridge on National Road 20

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 themin improving their technical skills through technical guidance and workshops. (Forty-nine exchange researchers have been
accepted as of April 2020.)

 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 to spreadand establish its technical policy and improve the technological level of society as a whole.
(A total of 452 lecturers dispatched in FY 2019 as of the end of March 2019))(Forty training courses with 818 participants held in FY 2019 (Yokosuka Office No. 2))
Port facilities maintenanceand management course

Support for local issues

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 toaccelerate restoration and recovery efforts.
We have also dispatched staff to Sediment Disaster Prevention Technology Center of Kinki Regional Development Bureau toperform 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 bystorm 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

Sabo

Coast

River Department
Head of Coast Division
Fuminori Kato

Sabo Department
Head of Sabo
Risk-Management Division
Hiroaki Nakaya

 Contact (E-mail: nil-gijutsusoudan@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

Organization

Collection, analysis, and management of data forming technical basisof policy formation, and return to society
Support for the Development of a Road Bridge Maintenance Cycle• Based on a vast amount of detailed data on the results of inspections of nationally managed road bridges accumulatedby the national government, the deterioration characteristics are organized under 272 conditions that vary in terms of thetype of damage, type of components, environmental conditions, etc. and are posted on the website below.

dDamage(large)x 24,000 bridges

100%

75%

e
d
c
b
a

50%
25%
0%

Elapsed Years

75%

e
d
c
b
a

50%
25%
0%

0
10
20
30
40
50
60
70
80
90
100

Damage(small)100%

Percentage of damage by severityeElapsed Years

End sections deteriorate quickly
Example of the characteristics of predicted deterioration(corrosion of main steel girder)<Announcement URL> http://www.nilim.go.jp/lab/bcg/siryou/tnn/tnn0985.htm

Support for the promotion of the stock management of sewers• Database that collects survey results of local governments’ information on deterioration judgment results, such as type of
pipe, elapsed years, corrosion, and slacking.
• Data of about 250,000 spans of 56 local governments has been released on the website below (as of June 2017).

Deterioration judgment result(TV camera investigation result)
Pipe diameter
Type of sewerage system, etc.
: As necessary

Number ofyears elapsed

Fig. Utilization of sewer pipe deterioration database<Announcement URL> http://www.nilim.go.jp/lab/ebg/rekka-db.html

Introducing facilities andresearch departments, etc.

: Required data

Soundness rate
prediction equation

Budget and employeesType of pipe

Supplement data necessary for examination bymeans of the sewer pipe deterioration database!

Soundness rate

Sewerage ledger of each local
government

Data required for soundness prediction
Number of years elapsed

International expansion/
Public information activities

 Release of sewer pipe deterioration database

Beneficial use of field data

Image of inspection data of 24,000 bridges
managed by the government

Support for fieldtechnology improvementaEnd
sectionMiddlesection

0
10
20
30
40
50
60
70
80
90
100

d e
c
bd
a
c bbadb

Percentage of damage by severitybSupport for accident anddisaster responsec b

Research and development

 Official announcement of deterioration analysis data obtained from periodic bridge inspections

18

Organization

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”.

Research and development

Dispatching Experts to the Disaster Risk Reduction
Training Program for Latin America and the Caribbean• Discussions were held with the Ministry of Infrastructure and Water
Management of the Netherlands, and visits were made to sites where
flood control measures are being implemented.
• Up-to-date information on flood risk reduction measures and climatechange-adapted flood control measures were directly exchanged.

• NILIM cooperates in human resource development training for Latin
America and the Caribbean based on the request from JICA.
• In FY 2019, bridge and building experts were dispatched to Chile tointroduce Japan's knowledge at seminars and training sessions on
tsunami and earthquake resistance.

Meeting with Ministry of Infrastructure and Water Management

Lecture on tsunami damage to bridges

Site visit to a widened river section to reduce flood risk

Seminar on the earthquake resistance of buildings

Cooperation in development of national technical standards(of Viet Nam)

Signing a memorandum of cooperation
with Federal Institute for Research on Building,
Urban Affairs and Spatial Development, Germany (BBSR)

Support for accident anddisaster response

Conference on flood management (Netherlands)

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

19

• Based on the memorandum concerning cooperation in developing
national technical standards for port facilities between the Ministry ofTransport of the Social Republic of Viet Nam and the Ministry of Land,
Infrastructure, Transport and Tourism (MLIT) of Japan, we cooperated
in examining the standards.
• In FY 2019, we jointly edited the standards for mooring facilities andmaintenance and management through five workshops.

• In FY 2019, a new five-year memorandum of cooperation was signed
between NILIM, Building Research Institute, and Federal Institute for
Research on Building, Urban Affairs and Spatial Development.
• In May 2019, the three institutions held a meeting at NILIM to
exchange views and a hold ceremony to commemorate the signingof a memorandum of cooperation.

Workshop

Ceremony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

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
evaluation

Follow-up evaluation(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□ Social experimentThis is an experiment on the implementation of research resultswith a local government etc.

■ 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 civil engineeringand building construction
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 Lecture
Meeting every year and introduces
its activities, announces research
results, and makes
recommendations for the
resolution of technical policy
issues. Approximately 700 people
attend every year.
It also holds specialist lecture
meetings and symposiums in eachfield whenever necessary.

NILIM Lecture Meeting (Dec. 2019)

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

NILIM Report is published annually tointroduce and explain research trends and thereflection of research results in policy andpresents recommendations concerningtechnology policy challenges.
(The full report is published on
NILIM website at the beginning ofeach fiscal year.)Comprehensive Research Report of NILIM
A Comprehensive Research Report of
NILIM is a report of the research results thathave academic value, contribute to theplanning and enactment of policy, orpresent the results of surveys,
testing, observations, etc. thatare deemed valuable enoughto be released to the public.
(The full report is publishedon NILIM website.)

Presenting papers
NILIM announces approximately 700 papers per year, andreceives awards for papers in many fields, both from inside andoutside of Japan.
• FY 2019 Committee on the History of Civil Engineering, Japan
Society of Civil Engineering - Excellent Lecture Award (June 2019)• Japan Association for Earthquake Engineering Convention 2019 Excellence Award (September 2019)• The 33rd Japan Road Association - Excellence Award (November2019) etc.

Lectures on demand are heldwith the aim of having NILIM
researchers go directly to schools
etc. to explain research contents
and answer questions while
holding open communications
with people.
(Data in FY 2019: 75 lectures)

View of a lecture on demandat an elementary school in Tsukuba City

Open house
Open house is provided to
introduce research facilities while
explaining NILIM’s researchcontents.
(Data in FY 2019: 3,138 visitors)
Contest for making bridges out of cardboard(productions on display at open house)

Private facility tours for groups arealso possible whenever asked for.

Tour of a testing facility

Facility Tour
We conduct facility tours
where we introduce our researchfacilities while introducing
research cases.

Facility Tour

■ Employees■ Research budget

Airports
600 Million JPY

Total
10 Billion
JPY

Administrative
staff
98

River andsediment
disasters
1.8 Billion JPY

Total
357
Research staff
259

Structure of research budget (initial budget for FY 2020)

Structure of employees (April 2020)■ 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 public capital in order toutilize, 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.

Support for fieldtechnology improvement

Sewerage systems
2.3 Billion JPY

Support for accident anddisaster response

Ports/harbors
2.1 Billion JPY

Roads
1.7 Billion JPY

Research and development

Other
1.2 Billion
Construction
JPY
300 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

Research and development

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

Personnel and Welfare Division General Affairs Division Accounting Division
Head Officer for General Affairs (Asahi, Tachihara Office)Planning Division●Research Coordinator for Evaluation ●Research Coordinator for Codes andStandards ●Coordinator for Research Planning

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.

Asahi Office

Tachihara Office

Yokosuka OfficeRoad Traffic Department●Research Coordinator for Road Affairs●Research Coordinator for Road Disaster Prevention

Roads have transportation functions that support the movement of people and the transport ofgoods, 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 ofroad 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

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.

Beneficial use of field data

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 toprotect the coastal areas from storm surges, tsunami, and erosion with consideration given to
the environment 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 them in flood damage prevention planning, the use of flood hazard maps
or flood risk information, and flood mitigation 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 engages in research on building structures, the grounds,
and technology and performance assessment methods concerning seismic force to secureand improve the safety of buildings etc.

■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

The Housing Planning Division is involved in the analyses of trends in residential living andhousing construction, as well as research concerning proposals for national housing plans etc.
based on such analyses, and measures to secure safety and security of housing and a residential
safety net.

■Housing Stock Management Division

The Housing Stock Management Division is involved in research initiatives for research projects
on the methods for identifying the actual condition of housing stock and improving
maintenance management, as well as research on renovation technology and dissemination
strategies for improving and enhancing the performance of houses and other structures.

■Building Environment Division■Housing Production Division

The Housing Production Division researches on housing and other building production(research on production technology for production rationalization, research on technical andinstitutional measures for end-user protection, etc.)

Urban Planning Department■Urban Planning Division■Airport Planning Division

The Airport Planning Division conducts research on policy simulations, such as demandprediction 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.

■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

The Airport Construction Systems Division conducts research on estimation and execution
standards and operation support systems in an effort to streamline and sophisticate
construction projects for the improvement, maintenance, and management 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.

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.

■Construction and Maintenance Systems 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.

■Advanced Construction Technology Division■Urban Facilities Division■Urban Disaster Mitigation 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.

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.

■Information Platform 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.

■Construction Economics Division■Urban Development Division

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

The research of the Coastal Disaster Prevention Division includes damage assessments due totsunami and high tides, disaster prevention and mitigation measures via hardware andsoftware, measures against climate change, and the maintenance and management of shore
protection facilities.
The Coastal Zone Systems Division conducts support and research on regional revitalization
using local resources in coastal regions, facility maintenance techniques harmonizing withdisaster prevention, convenience and scenery etc., and the maintenance of marine
environments.

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.

■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 officeInterdepartmental Organizations
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, irrigation, and environment in relation to plans for adaptationin order to deal with changes, such as floods and water shortages, resulting from futureclimate change.

■Environmental Research Committee■Port Systems Division■Disaster Prevention and Reduction Research Committee■Port Facilities Division■Maintenance Research Committee

The Port Planning Division conducts research on analyzing worldwide maritime trends andport planning methods based upon such analyses, and analyzes ship movements using AIS.
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 Environmental Research Committee promotes the sharing of information concerning
environmental research and interdisciplinary research in this field.
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.

■i-Construction Research Committee

The i-Construction Research Committee aims to promote research/development etc.
regarding i- Construction and spread i-Construction in the construction field.

Introducing facilities andresearch departments, etc.

■Port Planning Division

Budget and employees■Coastal Zone Systems Division

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

International 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 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.

Beneficial use of field data

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.

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

The Building Environment Division conducts research on evaluation methods for residential
and urban residential environments and methods for regional development, improvement, andmaintenance, as well as research on improving the thermal, light, and visual environments
surrounding houses and reducing environmental impacts.

Airport Department

Research and development●Research Coordinator for Housing Performance●Research Coordinator for Housing Information System
Aiming to realize quality residential living for people, it is necessary to implement measures,such as the formation of good housing and housing environments, adjustment of the conditionof the housing market, and the provision of residential stability for people.
The Housing Department is involved in research concerning technology and methods for 1)
extending the useful lives of houses, 2) renewal/utilization of existing housing stock, 3) housing
for the aged and a residential safety net, and 4) measures for environmental performance andenergy conservation of housing.

Organization

Housing Department

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 Office

Test course
This 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

Tachihara Office□ Total length: about 6.2 km□ Number of lanes: 3□ 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

Support for fieldtechnology improvement

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.
This is used inexperiments
necessary for thereform of technicalstandards, suchas experiments toestablish
protective guard fence specifications andperformance. It is also used in experiments fordevelopment/reform of new types of protective
guard fences etc., taking into consideration thescenery for residents and others.

5 Full-scale tunnel experiment facility

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.

Asahi Office

LegendInternational expansion/
Public information activities

Main road on premises

6Road on premises

Signboard showing
block details

5

A block
B block
C block
D block
E block
F block

Budget and employees
Introducing facilities andresearch departments, etc.

25

Videos of various experiments
conducted at NILIM andexplanatory videos
can be found here.

Public road7

G block

10

H block

9

Bus Stop* Buildings and lots other than thoseindicated above are those of the
Public Works Research Institute,
Building Research Institute, and thePort and Airport Research Institute.
0m

100m

200m

300m

400m

500m

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

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

0m

50m

100m

Support for accident anddisaster response

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 Japan’s largest wind wave channels
applied to hydraulic model experiments of storm
surges etc. Equipped with a blower to produce thewind of a typhoon and a pipeline system to create
the circuit flow, it is used for research on ways toprotect large cities from storm surges, high waves,and tsunamis.

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.

Sewer pipe model testing

9 facility

This is a pipe model that can reproduce
deterioration of sewage pipelines. It is used to test
the performance of mobile TV cameras and otherinspection devices used for pipeline maintenance.

Beneficial use of field data

Specimens cut out of dismantled bridge members

10 Full-size overflow channel

7 River model experiment facility

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

 Hydraulic experiment on the reinforcement of slopes

Togetsukyo
BridgeIn normal times

In the event of heavy rains

Model*We also have 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)

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

The high head test channel uses models close toactual size to study the external forces acting onriver 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.

International expansion/
Public information activities

This is an enormous facility with an area of 15 hathat is outdoors.
On the site, it is possible to install a maximumof 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 toobtain data on hydraulic phenomena
because of the complicated land features,and whose observation data are very limited,
via hydraulic model experiments for use in
implementing flood measures.

Support for fieldtechnology improvement

Oceanic andcoastal experiment facility

6 Dismantled bridge members

26

National Institute for Land and Infrastructure Management (Tsukuba)●Asahi Oﬃce
1 Asahi, Tsukuba City,
Ibaraki 305-0804 Japan
Tel: 029-864-2211

High Energy Accelerator
Research Organization

NILIM
Tachihara
OfficeNational Research InstitutePublic Worksfor Earth Science and Disaster Prevention
Research Institute University of
Sakuragawa
Tsukuba
Tsukuba University of Technology
Geographical Survey Instituteito
M
Tsuchiura Kita IC

Public Works
DobokuResearchKenkyujo
Institute

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Gak

Tsukuba Centerue

MeteorologicalResearch Institute
SasagiTsukuba J.C.T.

nlita
po itytro r-C ay
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Entrance toGakuen Higashi
AvenueJR Arakawaoki Station
Tsukuba-Ushiku IC

ita
Nar

Ueno

Tsukuba
StationApprox. 30 minutes

Misato JCT

o
Toky

Taxi
About 15 minutes

Kantetsu Bus
To Tsukuba Center

HitachinoUshiku
StationKantetsu Bus etc.
Highway Bus For Tsukuba Center or University of Tsukuba
Tokyo Station
About 70 minutes
Yaesu South
Exit
Kantetsu Bus etc.
Ibaraki Airport
For Tsukuba Center
Haneda Airport
NaritaInternational
AirportJoban Expressway
Shuto
Approx. 35 min
Expressway

JR
Job
an
Lin
e

Science Avenue

National Institute forEnvironmental Studies

Kenkyugakuen
StationTsukuba Express

JR Joban Line
Ueno Station About 60 minutes

Sakura-Tsuchiura IC

ko

Yo

C

a

m

ha

JR

PublicWorks
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

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

Shonan Bridge

Sahara Intersection

Tachihara
OfficeYatabe IC,
Tsukuba-Chuo IC, or
Sakura-Tsuchiura IC

aI

ag

Ur

Asahi
OfficeNon-highway road
Approx. 30 minutes

National Institute for Land and Infrastructure Management (Yokosuka)
Kitakurihama Station

NILIM (Tsukuba)

Tsuku Bus Yoshinuma Shuttle
About 20 minutes

About 45 minutes by Rapid Service

National Institute of Advanced
Industrial Science and Technology

Doho Park

Yatabe IC

Tsukuba Express
About 49 minutes by Regional Rapid Service
Akihabara
StationNational Institute for Materials Science
Tsukuba Space Center

ven

Tsukuba-chuo IC

JR Tsuchiura
StationTsukuba Center for Institutes

ori A

Tsu Akiku hab
ba
a
Ex ra
pre
ss

ishid
en N

ue
ven
oA
Exp

Front gate

Transportation guide to NILIM (Tsukuba)

ue

ven

Kenkyugakuen
StationPublic Works
Research
Institute

NILIM (Tsukuba)u
GakTsukuba Station

National Institutefor School Teachers and Staff
Development(to Tsukuba Center)

Building Research Institute

ay
ssw
re
xp
E
n
ba
Jo

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-Ga
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Front gateito
M

National Institute for
School Teachers andStaff Development

Tsukuba Center (Platform 5)

Tsukuba Botanical Garden
University of Tsukuba Hospital

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

NILIM
Public Works
Research
Institute
Entrance

Building Research Institute
NILIM
Asahi Office●Tachihara Oﬃce
1 Tachihara, Tsukuba City,
Ibaraki 305-802 Japan
Tel: 029-864-3742

Front gate

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

Uraga Port
Yo

ko

su

ka

Lin

e

Funakura

Sahara IC

Transportation guide to NILIM (Yokosuka)

maYokoha Roadka
YokosuKeikyu Line

Entrance to Iwato
Housing Complex

JR Kurihama Station

-H

ka

su

ko

Yo

JGSDF Camp
Kurihama

Keikyu Kurihama
StationYokosuka OfficePort and Airport
Research Institute

e
in

aL

am

ay

Kurihama
KeikyuKaikoku Bridgeki

Yokosuka Office II
M
isa

KeikyuKurihama
Station Keikyu
Kurihama
Station Bus
JR Yokosuka Line
Terminal
Yokohama
Tokyo
Kurihama
StationStationStationShinagawa
StationMeotobashi

Kurihama Port

Kurihama
Flower Park

Yokohama
StationFor Nobi Coast
For Chiyogasaki

Kaikoku
Bridgeor

For Uraga via
Chiyogasaki

Sotohatake

Five-minutewalk
Oneminutewalk

Ten-minute walkNaval Systems
Research Center

YokosukaOﬃce

YokosukaOﬃce II

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

Aso City

National Institute for Land and Infrastructure Management (Kumamoto Earthquake Recovery Division)
Mt. Aso◎Ozu Town Oﬃce
to Higo-Ozu

amo

Kum

TatenoSeta

Kumamoto
Earthquake Recovery
Division

Shirakawa

How to get to the NILIM (Kumamoto Earthquake Recovery Division)

Choyo
Kase

Kumamoto Airport

3574 Kawayo, Ooaza, Minamiaso Village, Aso County,
Kumamoto 869-1404 Japan
Tel: 0967-67-2039◎Minami Aso Village Office
Tak
am
ori

General road (Choyo Ohashi route)

Asoshimoda Station

Hakusuikogen Station◎Nishihara
Village Oﬃce

Nakamatsu

KyushuExpressway

to

amo

Kum

5km

10km
Green RoadNILIM logos

General road (Tawarayama tunnel route)

Approx. 40 minutes

Kumamoto Airport Mashiki IC

Takamori

0km

Approx. 35 minutes
Kumamoto IC

Kumamoto
AirportGeneral road (Tawarayama tunnel route)

Approx. 30 minutes■ Public transportation (Bus: starts in front ofKumamoto
Earthquake
Recovery
Division

JR Higo-Ozu Station)• Minamiaso Yurutto Bus: Five–minute walk from thefront of Minamiaso Junior High School• Nango Liner: 12 minutes on foot from Choyo Station
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 public capital 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 July 2020.