New Technologies

Road Reopening Plan based on a Detailed Damage Estimation

The realization of swift rescue and transportation of emergency supplies is of critical importance at the time of a major disaster, such as an expected Nankai Trough great earthquake. However, the current damage estimation does not provide the likely nature and place of damage along roads to be used for the transportation of emergency supplies, making it difficult to estimate the required time for road reopening. Using advanced disaster mitigation technologies and its rich experience, EJEC has made it possible to examine the likely time for road reopening based on a detailed damage estimation for individual facilities of a wide area road network.

Road Reopening Plan based on Damage Forecast for Individual Road Facilities

Owner Work Title
Chubu Technical Office, MLIT Examination of a Road Reopening Method in the Event of a Nankai Trough Quake
Road Division, Chubu Regional Development Bureau, MLIT Examination of Earthquake and Tsunami Countermeasures for Roads in the Chubu Region
National Institute for Land and Infrastructure Management, MLIT Study on the Instant Supply of Information on Estimated Earthquake Damage

↑ Back to Top

AURIS (Non-Destructive Exploration System)

AURIS is a type of impact elastic-wave method. It is a non-destructive exploration method capable of easily detecting the depth of embedment as well as cracks and rifts of concrete structures, steel structures, pile foundations and rolling stones. As the system equipment of AURIS is compact, exploration can be conducted in a place where it is difficult to bring in large equipment.

AURIS (Non-Destructive Exploration System)

Owner Work Title
Izumo Prefectural Civil Engineering Office, Shimane Prefectural Government Study and Design of Repair Work for the Arihara Overpass on National Highway 184 in FY 2007
Wakayama Port Office, MLIT Study to Diagnose the Determination of Coastal Protection Facilities at Shimotsu Port, Wakayama in FY 2009
Miyagi Prefectural Kesennuma Civil Engineering Office Survey and Design Concerning Coastal Disaster in the Dainozawa District in FY 2011

↑ Back to Top

Tunnel Lighting System

Using vehicle detection sensors installed at tunnel entrance areas, this system controls the lighting intensity inside a tunnel, achieving further energy saving in addition to energy saving with the recent use of LED lighting.

Tunnel Lighting System

Owner Work Title
Kushimoto Construction Department, Higashi-Muro Development Bureau, Wakayama Prefectural Government Design for the Prevention of Road Disasters on the Susami-Koza Route (Fukaya Tunnel) in FY 2012

↑ Back to Top

ERTS (Vehicle Number Plate Detection and Analysis)

ERTS is a type of AVI (automatic vehicle identification) system. It photographs the number plate of each passing vehicle for automatic digital processing. The use of ERTS allows various outputs, including the traffic volume by registered prefecture or vehicle model. Moreover, the matching of number plate information between several survey points allows calculation of the travelling time, continuous traffic surveying over more than one day and steady data collection regardless of the time of day or weather conditions.

ERTS (Vehicle Number Plate Detection and Analysis)

Owner Work Title
Shiga National Highway Office, MLIT Travelling Route Study on National Highway 161 and Kosei Road in FY 2005
Numazu River and National Highway Office, MLIT Study on Smoother Transportation in the Izu Area in FY 2007
Tottori River and National Highway Office, MLIT Fact-Finding Study on the Traffic Conditions in the Tottori Highway Office Area in FY 2010

↑ Back to Top

Exotic Water Plant Collection System

A technology for an exotic water plant collection system has been developed for improved safety and cost reduction of the work to remove exotic water plants propagating in rivers and other water bodies. The total development period was three years. In the first year, the development concept was established and a prototype machine was designed. The functions of the prototype machine were tested and the design was improved in the second year. In the third year, the improved machine was tested and the finer details were finalised. The newly developed collection system is evaluated as being superior to conventional manual collection in terms of efficiency, safety and economy.

Exotic Water Plant Collection System

Owner Work Title
Kyushu Technical Office, MLIT Study on Efficient Technology to Collect Exotic Plants in FY2011
Kyushu Technical Office, MLIT Verification of Functions of the Exotic Plants Collection System in FY2012
Kyushu Technical Office, MLIT Verification of Improved Functions of the Exotic Plants Collection System in FY2013

↑ Back to Top

Seabed Exploration Technology Using a Simple Side Scan Sonar

A simple side scan sonar was developed by LOWRANCE of the USA as a structure detector for bass fishing. Its use of high frequency (800 kHz) sound waves enables the reproduction of structures, etc. laying on the seabed as clear images. We have improved the system to allow its mounting on a rubber boat and measuring can be conducted with a shallow water depth of 1 m (maximum measurable water depth: approximately 10 m). The integration of the data obtained by this simple side scan sonar can produce a single mosaic chart.

Seabed Exploration Technology Using a Simple Side Scan Sonar

Owner Work Title
Rural Development Section, Department of Agriculture and Forestry, Yuri Regional Development Bureau, Akita Prefectural Government Entrusted Work to Improve the Fisheries Environment in Akita Prefecture (Konoura Fishing Grounds)

↑ Back to Top

Large-Scale Sediment Movement Detection System

The introduction of a large-scale sediment movement detection system is in progress nationwide for the early detection of actual sites of deep-seated landslide, etc. based on ground vibrations. In connection with this system, we have been involved in various studies and equipment design in addition to the analysis of ground vibrations caused by deep-seated landslides or intensive shallow landslides and debris flows.

Large-Scale Sediment Movement Detection System

Owner Work Title
Kii Mountains Sabo Office, MLIT Vibration Sensor Installation and Monitoring Work in FY 2012
Hokuriku Regional Development Bureau, MLIT Development of a Large-Scale Sediment Movement Detection System
Kii Mountains Sabo Office, MLIT Vibration Sensor Installation and Monitoring Work in FY 2013

↑ Back to Top

Technology to Increase the Volume of Methane Gas Recovery at a Methane Gas Production Facility

Amidst the increasing importance of utilising biomass as a safe energy, we have been involved in the design and construction supervision of methane gas production facilities in Japan. We have also conducted a number of feasibility studies on methane production overseas and have been actively involved in determining the characteristics of biomass resources which are essential for methane gas production projects and also in R & D on technologies to increase the volume of methane gas recovery and other related matters.

Technology to Increase the Volume of Methane Gas Recovery at a Methane Gas Production Facility

Owner Work Title
Senroku Association of Environmental Facilities Entrusted Work to Supervise the Construction of the Senroku Sludge Recycling Centre
Ministry of the Environment Project to Support a Feasibility Study, etc. to Promote the Overseas Development of Venous Industries (project for wide area collection, energy recycling and sanitary landfill of solid waste in Isabela Province, the Philippines
Global Environment Center Foundation Feasibility Study on CDM Using the Residue and Effluent of Pineapple Processing in Mindanao, the Philippines

↑ Back to Top

Other Examples of R&D

  1. Priority ranking assessment system
  2. Simple identification system of rocks from which nature-derived heavy metals are eluted
  3. Research on ground appraisal technique using physical analysis (X-ray diffraction, CNS analysis, etc.
  4. Establishment of tsunami and evacuation simulation techniques for urban areas
  5. Basic research on FRP grid design technique for tunnel maintenance
  6. Demonstration test of an IT system to measure ground tilt
  7. Research on the mechanism of deep-seated landslides focusing on flowing water (muddy water) from hillsides
  8. Development of a simple prediction method for road traffic vibration using the transfer function
  9. On-site methane generation experiment to promote a methane fermentation project using kitchen waste in Southeast Asia
  10. Development of an assessment method for the impacts of tsunami on civil engineering facilities and the effects of countermeasures
  11. Learning of a seawater flow simulation technique using the MEC model
  12. Development of a clearance limit checking system for box culverts