Is Federal Government For Road Repair And Maintinance Construction

Maintenance and Repair of Roads

Tokyo's roads support the lives of residents and will serve as lifelines for evacuation and relief operations in the issue of a disaster. In addition, as a vital part of the nation's ship network, these roads are essential infrastructure that back up social and economic development.

In order to ensure that these roads are kept in good status and traffic tin can safely pass, the Bureau is constantly engaged in road maintenance and repair.

As part of maintenance and repair programs, a range of inspections are conducted on an ongoing footing, including daily patrol inspections, regular periodic inspections, and emergency inspections conducted in response to events such as heavy pelting. By accurately grasping the condition of the roads, the Bureau is carrying out maintenance, scheduled repairs, and reinforcement work.

Route and Bridge Maintenance Programs

In order to ensure the safety of road users, the Bureau uses patrol cars to conduct daily inspections, looking for issues such every bit harm to or the decay of roads and bridges, road obstructions or debris, and problems with road lighting, and takes the appropriate measures to respond.

Taking into business relationship the characteristics of each route, inspections are generally scheduled for once every iii days. Annually, the Bureau discovers over l,000 cases of harm to roads and other abnormalities.

In addition, the Bureau also carries out maintenance including street and street gutter cleaning, repainting of bridges, and resurfacing of bridge decks.

Route patrol car
Emergency work

Road Repair Programs

Road Surface Repair

By conducting a pavement condition survey once every three years, the Bureau measures cracks, ruts (depressions), and pavement evenness on all roadways, except for those located on the Tokyo islands, and evaluates the data using the Maintenance Necessity Index (MNI).

Based on the results of the survey, locations in demand of repair are selected and priority for repair is established. Past systematically conveying out surface repairs, the Agency provides drivers with a condom and pleasant ride. In addition, along with road repairs, improvements with respect to steps and gradients are being fabricated to sidewalks.

Pavement condition survey equipment (vehicle)
Road surface repair

Making Road Surfaces Highly Functional

The Bureau is paying conscientious consideration to the environment along roads, using noise reducing pavement and two-layer noise reducing pavement in areas where measures to reduce noise are needed, and heat shield pavement and water-retentive pavement where measures to mitigate the urban heat island effect are needed.

Maintenance of Road Facilities

Through scheduled inspections conducted out once every five years on all route facilities (tunnels, hugger-mugger walkways, retaining walls, common ducts, etc.), the Bureau finds abnormalities or damage to road facilities early on, takes the necessary steps, and carries out planned repairs and reinforcement, ensuring safety for road users.

Tokyo Outer Ring Road (Between Kan-etsu Expressway and Tomei Expressway)

Retaining wall inspection

Preventative Maintenance of Tunnels

Starting in financial 2022, detailed testing to make up one's mind the structural soundness of all tunnels was conducted over a course of two years. The first phase of tests included imaging and laser scanning of tunnel walls and lining. Tunnels that were establish to exhibit damage were so put through a 2d stage of testing that included close visual inspection, hammer borer, inspection by feel, testing for cavities behind the tunnel lining, and testing of the concrete. Based on the test results, swift measures are being taken for tunnels in need of firsthand repair, while a preventative maintenance program that compiles required measures has been drawn upwardly for all tunnels. Through these inspections and by carrying out scheduled maintenance and reinforcement, the Agency is ensuring tunnel rubber.

Void detection test(radar browse)
Boring test

Average Traveling Speed during Congestion Time: Comparison with Other Cities

Image scanning using a CCD photographic camera

New Transportation Systems and Urban Monorail Facilities

As important means of urban transport in local communities, new transportation systems and urban monorails have contributed to the evolution and promotion of areas along the route. Today, while supporting the everyday lives of the people, they also play a major role in creating prosperity and vitality in communities.

The infrastructure that supports new transportation systems and urban monorails, including support columns, runway girders, switches, station roofs, barrier-costless facilities, and concourses, is managed by the route ambassador equally a part of its road facilities. Past systematically maintaining and repairing these facilities based on inspection results, the Bureau is ensuring the smooth function of the capital's transport systems and increased convenience and safety for users.

New Transit Yurikamome
Tama Monorail

Conversion to LED Street Lighting

When compared to other types of energy efficient lighting (ceramic metal halide lamps and high-pressure sodium lamps) LED lamps swallow less electricity and take a longer life. As such, the Bureau is working to optimize management efficiency by switching to LED lighting, starting with street lights that can be converted.

Tokyo Outer Ring Road (Between Kan-etsu Expressway and Tomei Expressway)

Route Management Using Information and Communication Technology (ICT)

In social club to reach efficient maintenance and management of road facilities and work toward improved disaster response capabilities, the Bureau is working to employ the utilize of Information and Communication Engineering (ICT).

With respect to routine operations, inspection of road facilities that use radio frequency identification (RFID) technology are existence conducted on the Shinjuku Fukutoshin Route No. iv.

The Bureau likewise operates the Rescue Navigation Arrangement. When a natural disaster occurs (earthquake, flood, or snow-related), GPS-enabled cell phones are utilized to promptly and accurately get together data on route damage, which is and so stored in a database. This organization aims to facilitate effective information sharing between Agency headquarters and offices. Additionally, on some roads in mountainous areas, the Bureau has set up equipment such every bit cameras and rain gauges, which permit Agency headquarters and offices to check local conditions, in order to enhance disaster response capabilities.

Road facility inspection using RFID
Rescue Navigation Organisation On a cell telephone (left) Personal computer (right)

Seismic Retrofitting of Bridges

In lodge to ensure that emergency and evacuation operations volition run smoothly when a disaster strikes, the Agency is working to seismically reinforce bridges such as those on or over emergency transport roads. By conveying out these repairs, bridge collapses are being prevented prior to a disaster occurring.

Earlier seismic retrofitting
After seismic retrofitting

Life Extension of Bridges

This program works to extend the life of prominent bridges highly valued every bit cultural avails, including the Kiyosubashi, Eitaibashi, and Kachidokibashi bridges which bridge the Sumidagawa River, long span bridges for which the cost to rebuild and affect on the surrounding expanse would be bang-up, bridges that cross over railways and roads, too as bridges of main arterial roads

The bridge life extension plan ensures safety and peace of heed past upgrading bridges to brand them fifty-fifty more durable through repairs and reinforcement measures that use the latest technologies and materials. The Bureau aims to extend the lifespan of bridges to 100 years beyond completion of reinforcement measures.

Reinforcement of bridge supports
Reinforcement of bridge foundation

Bridge Maintenance

The Bureau conducts regular periodic inspections on all bridges once every five years. Based on the inspection results, the appropriate repairs and reinforcement measures are carried out ensuring prophylactic.

Bridge inspection
Repairs to concrete

Prevention of Road Disasters

Roads in the mountainous regions and islands of Tokyo are essential parts of the infrastructure. Information technology tin can also be said that these roads are the lifelines that support the livelihood of residents and economical activities in the surface area. The implementation of safety measures on hillsides and slopes is extremely important in preventing disasters on these roads. On mountain roads, regular periodic inspections are carried out in one case every 5 years and the condition of hillsides and slopes is fully assessed. Based on the results of this inspection, rubber measures are systematically implemented in order of the locations in most urgent need.

Inspection of gradient
Slope stabilization filigree