Utilization of advanced technology

Promotion of research and technology development

Development of snow removal vehicle driving support system

We are developing and trying a driving support system that guides the safe driving of snow and ice vehicles by combining a quasi-zenith satellite system that can obtain highly accurate position information and 3D high-precision map data.

(1) Combination
Combination © JAXA image image
Image of combined 3D high-precision map data
3D high-precision map data
(2) System development
System development Image of driving position displayed on driver's seat 1
Driving position is displayed on the driver's seat
System development Image image of driving position displayed on driver's seat 2
(3) Trial
Trial system development Image of obstacle position such as guardrail, outside line position
Trial image Image of how snow can be safely removed even with poor visibility
Safe snow removal even with poor visibility

By further utilizing the quasi-zenith satellite and technological development, we are working on supporting snow removal work at high speeds (about 50 km/h) and developing automatic steering technology for rotary snow removal vehicles.

Image of support for snow removal work at high speed
Image of snow removal work support at high speed
Image image of rotary snowplow automatic steering
Rotary snowplow automatic steering image

Research on antifreeze agents

The "NEXCO EAST Research Center" introduced in Special Feature 3 (P21-22) is conducting research and technological development using corrosion acceleration testers and low-temperature constant humidity testers as an initiative to improve measures against snow and ice.

The corrosion acceleration tester is a device that accelerates the corrosion rate by repeating salt water spraying → drying → wetting, and tests and researches materials that are resistant to corrosion by spraying antifreeze agents. The low temperature and humidity tester is a device that reproduces the same situation as roads in winter by controlling the temperature and humidity, and further rationalizes and improves the efficiency of antifreeze agents, and conducts tests and research on frost damage and snow damage.

Freezing corrosion acceleration tester photo
Corrosion acceleration tester
Photo of low temperature and humidity tester
Low temperature and humidity tester

Road crack depth measurement technology (LCMS *) utilizing non-destructive inspection technology

A technology that estimates the crack depth from crack data on pavement without implementing traffic restrictions by using a test vehicle equipped with LCMS with the aim of saving labor in inspections and surveys on Expressway and advancing repair technology. Development is in progress.

 * LCMS: Abbreviation for Laser Crack Measurement System

Image of photograph of frost corrosion acceleration tester
Image of laser pavement crack measurement
Image image of detection image of pavement cross-sectional shape
Image of detection of cross-sectional shape of pavement


(Ltd.) NEXCO Engineering Niigata facilities Division Facility Engineering Department ITS Development Department Tsuchida SeiHisashi photo
Technology Headquarters General Technology Center
Technology development team
Hiroharu Tanabe
*Job title at the time of interview

I am in charge of research / technology development and engineer training at the NEXCO EAST Research Center.

In research and technological development, we are working to improve the sophistication, efficiency, and safety of various snow and ice countermeasure work, such as further utilization of antifreeze agents and efficient spraying methods. Also, in the training of engineers, we try to develop engineers mainly for young people by giving them experience on site and giving them hands-on training using the facilities of this center.