Expressway Maintenance - 3
Smart Maintenance Highway (SMH) Concept고속도로 관리 - 3스마트 정비 고속도로(SMH)컨셉
Monitoring of bridges(Damage and cracks of girders, etc.)

Monitoring of slopes(slope displacement and movement, etc.)
Survey of the hollow cavities behindthe lining surface of existing tunnels
Human resource development at
the Technical Training Center(TTC)

Checkups for bridges
Unmanned Air Vehicles(UAVs)

Development of coaching methods and skill improvement programs

Support for damage assessment
by image analysis

Multifunctional facility measuring“Hakaaru (lit. measuring)”

Early understanding of site information using
the filming system of emergency helicopters
Support system for reporting localconditions(e-SSS)

Infrastructure management center

Optimization of inspection by enhancing
a position recognition system
Monitoring of pavement(road surface conditions)

Wireless
Wired

Deflection sensor

Data logger

Schematic view of SMH concept upon completion
Making inspection records available on mobile terminals

Mobile telephone
or Smartphone

ServerOffice PC

Input of inspection results using
electronic sheets and pens
→Transmission to management
centerSmartphone

Infrastructure Management Center

Inspection and monitoring database

Checkups forbridges
Unmanned
Air Vehicles(UAVs)

Asset management
Soundness evaluation andanalysis/ Deterioration forecasting and analysis

Database of inspection andrepair histories, various elements

Big Dataprocessing

Database server
Plans and expense
forecasts for support and upgrading
Monitoring deterioration and damage by remote automated measurement Sensor

Monitoring by measurement vehicles
of deterioration and damage Light sensor

BridgeLaser light (Sensors for detecting faint light)

Transmission equipment

Power-supply
equipment

No abnormalities

SlopeSensor

Laser scanner(Uses laser light to scan wall surfaces)
Road-surface
condition

Tunnel (surface of concrete lining)

Bridge(damage under beams/cracks/vibration and other behavior, etc.)

SensorTunnelTransmission equipment
Transmission equipment
Tunnel(health monitoring)
Slope(slope displacement, movement, etc.)

Schematic view of key ICT and links
1 What is SMH?

2 Background■ The basic characteristic of an SMH is constant monitoring as the basis for■ Aging expressway assets (The Long-term Maintenance Examination Committee

solving a variety of problems in local infrastructure management.

■ As part of this effort, to secure the long-term safety and security of roadinfrastructure, ICT and mechanization are introduced under the management ofengineers to form a comprehensive maintenance framework. This framework
streamlines, enhances and boosts the reliability of support management andupgrading.

■ One aim is to introduce an infrastructure Management Center(tentativename)linked with the Road Traffic Control Center by FY2020.

was formed in November 2012 and tabled its final report on January 22, 2014.)■ Agencies at various levels(national, industrial, academic, etc)launched into
concerted deliberation in the wake of the Sasago Tunnel collapse on the Chuo
Expressway in December 2012.

■ The year 2013 was positioned as “Year One for Infrastructure Maintenance,” and thenational government carried out a series of comprehensive measures on this front.

■ For the East Nippon Expressway Company, streamlining and enhancement of
support management and upgrading have long been vital and urgent issues.
With this background in mind, Nexco East Japan is marshaling Company-wide
resources to make the SMH concept a reality.