Tunnel Lining Inspecting System‫ﻧﻈﺎم ﻓﺤﺺ ﺗﺒﻄﯿﻦ اﻟﻨﻔﻖ‬Attention!!

No.1

Attention!!

Photographing tunnel lining surfaces at themaximum speed of 100 kilometers per hour
Photos can be taken at the speed of 5 to 100 kilometers per hour
without obstructing the traffic.

Photographing without flushing

No.2

By adopting near infrared LED, this system does not emit light usuallynecessary for photographing and photos can be taken without being
noticed by other drivers, which helps prevent inattentive driving.

Attention!!

High-resolution image oftunnel lining surface

No.3

Cracks on lining surface can be detected to 0.2mm width.

Attention!!

Detection and mapping of defects on
the lining surface

No.4

Automatic crack detecting and editing function makes it possible toextract cracks from photos automatically.

WEST NIPPON EXPRESSWAY COMPANY LIMITEDWEST NIPPON EXPRESSWAY ENGINEERING KYUSHU COMPANY LIMITED
https://global.w-nexco.co.jp/en/

J-SYSTEMWEST NIPPON EXPRESSWAY COMPANY LIMITEDWEST NIPPON EXPRESSWAY ENGINEERING SHIKOKU COMPANY LIMITED
https://global.w-nexco.co.jp/en/Smart-EAGLE

Road Surface Inspection‫ﻓﺤﺺ أﺳﻄﺢ اﻟﻄﺮق‬WEST NIPPON EXPRESSWAY COMPANY LIMITEDWEST NIPPON EXPRESSWAY ENGINEERING SHIKOKU COMPANY LIMITED
https://global.w-nexco.co.jp/en/

Road Surface Management using the
IRI and the Road Management Images[Visual Road Management]‫ وﺻﻮر إدارة اﻟﻄﺮق‬IRI ‫إدارة أﺳﻄﺢ اﻟﻄﺮق ﺑﺎﺳﺘﺨﺪام ﺗﻘﻨﯿﺔ‬[‫]إدارة اﻟﻄﺮق اﻟﺒﺼﺮﻳﺔ‬Installation / Attachment Example

WEST NIPPON EXPRESSWAY COMPANY LIMITED
https://global.w-nexco.co.jp/en/

WEST NIPPON EXPRESSWAY ENGINEERING CHUGOKU COMPANY LIMITED
http://www.w-e-chugoku.co.jp/en/

Safety and peace of mind

Moving-vehicle weighing instrument‫اﻷﻣﺎن وراﺣﺔ اﻟﺒﺎل‬‫ﺟﮫﺎز وزن اﻵﻟﯿﺎت اﻟﻤﺘﺤﺮﻛﺔ‬Warnsdrivers
whoaredrivingoverloadedvehicles
Warns drivers who are driving overloaded vehicles
・Overloading is a cause of major accidents.
・Patentpending

Overloaded vehicle

Warning notice board
Detection section

Features of the moving-vehicle weighing instrument

・The number of axles can be detected at high speeds.
・Vehicle weights (gross weights) can be measured more accurately at high speeds.
・The meter distinguishes the forward and backward movement of vehicles.
・The new meter is more durable than the previous models.

WEST NIPPON EXPRESSWAY COMPANY LIMITEDWEST NIPPON EXPRESSWAY FACILITIES COMPANY LIMITED
https://global.w-nexco.co.jp/en/

Ageing Road Assets‫ﻣﺘﻘﺎدم‬

9,000
8,000

 At least 40% of the total bridge-length and 20% of total tunnel-length were also
constructed more than 30 years ago and they are facing increased risk by the ageddeterioration.
 The total vehicle weight is increasing with the increase in the number of large-scale
vehicle on the expressways. The expressways are under severe conditions such asincreasing in the usage of anti-freezing agent (NaCl) and the increase in the amountof extreme rainfall for a short time.

60

10～19 years
20～29 years
5030～39 years

Total expressway Length(km) At least 40% of the total expressways-length has been operated for more than
30 years and because of this, the expressways are seriously deteriorated.

Less than 10years

7,000

40～49 years
More than 50 years

6,000

40

Average

5,000
30
4,000
20

3,000
2,000

10
1,000
00

Elapsed years of the expressway transition

Concrete cracks and float

Severe environment in snow region

Concrete free lime

Damaged Condition

Average Service Period (years)

Current situation and problem of expressways

10,000Expressway Renewal Project‫اﻟﺘﺠﺪﻳﺪ‬Severe deterioration on slab lower surface

Large-scale renovation for bridges
e.g. Replacement of RC concrete slab with PC precast slab

Two-way traffic
regulation

Open to Traffic (1963)

Deteriorated Structure (2014)

Bridge renovation work

Undergoing Renewal Works (2019)

Renewed Segment (planed in 2026)

Expressway Inspection & Diagnosis‫اﻟﺘﻔﺘﯿﺶ واﻟﺘﺸﺨﯿﺺ‬BridgeRoad Surface
One of unique road surface inspection vhiecles, not only can measure rutting, cracking,and flatness (σ10ft, IRI) but also longitudinal and transverse pavement measurements
without making contact with the pavement.
It can smoothly and safely perform all 6 functions at 100km/h without impacting the flowof other traffic.

High-Speed Road Surface Measuring Vehicle (Road Tiger)

Tunnel Liner
Tunnel liner inspection vehicle:

High definition images taken by digital camera or video camera makes it possible toinspect the surface of a structure in the same way as the close visual inspection.
Through a computer analysis of the images, the clacks are automatically detected.

Infrared Camera System –Delaminations /spill inspection:
The infrared camera system takes images which isanalyzed automatically and displays the damagelevel in three stages. Because damages are
objectively analyzed by software, bias oroversight in measuring caused by skill difference
can be prevented. In addition, this system helps tocreate a research report since the detected results
are easily captured on spreadsheets or word
processing software. This system has gotten trackrecords in the U.S.

Infrared thermal image

Bridge inspection using
Infrared Camera System

It is now possible to obtain a clearer image at a speedof 100km/h by adopting the line sensor camera insteadof the conventional video camera. In addition, because
the photographing illumination using LED infrared
illumination is not visible to the naked eye, it no longer
influences on the passing vehicles on the opposite
direction. Moreover, this vehicle automatically identifies
the cracks by the captured image.

Inspection vehicle

Filming in a tunnel

Digital camera/video camera system - Crack inspection:

Crack analysis(minimum 0.2mmin width)

Bridge inspection using DigitalCamera System

Automatic crack-analysis by computer

Damage is detected bycomputer analysis

Video Camera
SystemDisaster Management‫اﻟﻮﻗﺎﻳﺔ ﻣﻦ اﻟﻜﻮارث‬Use of rest areas as disaster-management bases

Disaster Prevention
Disaster caused by extreme
rainfall for a short time

 Ground anchor

 Slope Protection WorkNew type of anchor installation filling up
traditional anchor with inadequate
Existing conventional
anticorrosion function

Measures against land slide

anchorIn the Great East Japan Earthquake, the Self-Defense Forces and firefighters heading to stricken areas used
expressway rest areas as relay and support bases. Based on this experience and various issues, authorities arebolstering their disaster-response capabilities across Japan to respond effectively and efficiently to emergencies,
using Moriya SA on the Joban Expressway as their model.
 Moriya Service Area (Southbound) on Joban Expressway, as a disaster management base

New type of anchor
addedEmergency vehicle
entrance/exit
Used by emergency
vehicles to enter and exit
outside of expressway intimes of disaster

Disaster-response warehouse
Inflatable tents for outdoor use,
emergency food and rations, relief
supplies, traffic regulation equipment
and other suppliers are store at thisDisaster-response warehouse

The recovery of the Tomei expressway in Makinohara area
Immediately after the Surugawan earthquake, NEXCO-Central started emergency checkup and stopgap recovery, and 4 days
later, finished temporary recovery for general traffic.

Aug. 11th 2009

Generators and rooftop
solar-power generation
facilities

Solar-power generation
panels on the roofs ofcommercial facilities

Heliport for mid-size
Helicopters
Nighttime illumination anda helicopter office havebeen installed, enablingsafe landing and take-off
day and night

Generators enable
continuous use for72 hours

Aug. 15th 2009 (4 days later)

Earthquake Museum for educational assistance on disaster prevention
Great Hanshin-Awaji Earthquake occurred in January 1995, took precious
lives and destroyed cherished livings of local communities. Earthquake
Museum conveys how Hanshin Expressway responded in the 623 days tocomplete the restoration of the expressway system. It displays damaged
structures and introduces new technologies and various activities which
put into practice based on the lessons including disaster management
support and educational assistance for disaster prevention.

Well
A well has been dug in caseof interruption of watersupplyThe food court is used as adisaster management office(1st Floor)
The food court layout can berearrange for use as a disastermanagement office, underdisaster situations- Electrical power outlets and TV
antenna terminals are installed- Large monitors and whiteboards
are installed

First-aid space (2ndFloor)
The employee break lounge
can be used as a first-aidroom.

General situation

Emergency situation

NEXCロ・.
Ez‑‑
2Japan'sExpresswaysarebuiltandoperatedbysixcompanies.
Thetotallengthi
noperationi
s10，351km，and331kmi
sunderconstruction.
Sapporo

WEST

CompanyName:
WestNipponExpresswayCompanyL
imitedHeadO
ffice:Osaka
Expresswaysi
nOperation:3，533km

NEXCロ

TrafficVolume:2.
95millionvehiclesjday

Er:
lS T

Tol
IRevenue:US$7.
1bi
llion

CompanyName:
imitedEastNipponExpresswayCompanyL

Expresswayunderconstruction:72km~る

Hanshin
Expressway

CompanyName:
HanshinExpresswayCompanyL
imitedHeadO
ffice:OsakaExpresswayinOperation:250.
4km

HeadOffice:Tokyo
Expresswayi
nOperation:3，943km

NEXCロ

TrafficVolume:2.
95millionvehiclesjday

山 E5T

Tol
IRevenue:US$7.
82billion

Honshu‑Shikoku
BridgeExpressway

ExpresswayunderConstruction:75km

NEXCD
E日 5 T

TrafficVolume:0.
72millionvehiclesjday

量NEXCOCENTR日 L

Tol
IRevenue:US$1.7billion
CompanyName:CentralNipponExpresswayCompanyL
imitedExpresswayunderConstruction:34.2km

日

Honshu‑Shikoku
BridgeExpressway

HeadO
ffice:Nagoya

FukuokaExpresswayi
nOperation:2，132km

shutokoCompanyName:
Honshu‑shikokuBridgeE
xpressw
ayCompanyL
imited.98millionvehiclesjdayTrafficVolume:1
Tol
IRevenue:US$6.
30billion
ExpresswayunderConstruction:132km

HeadO
ffice:Kobe
ExpresswayinOperation:172.9km

shutoko

TrafficVolume:0.
12millionvehiclesjday

IRevenue:US$0.
6billionTol

NEXCD
CENTR日 L

CompanyName:
imitedMetropolitanExpresswayCompanyL
HeadO
ffice:Tokyo
Expresswayi
nOperation:320.1km

Inoperation
.
.
.
.
.
.
.
・・園
田・ Underconstruction

Hanshin
Expresswayst，
Aso
fJULY120192019andc
alculatedbytheexchangerateo
f110JPYfor1US$
Note:Revenueisforyea
rendedMarch31，TrafficVolume:1.02millionvehiclesjdayTol
IRevenue:US$2.
4billion
ExpresswayunderConstruction:17.5km