Date November 1, 1995
Venue PWRI test track, Tsukuba, Japan
Organized by PWRI of MOC
Summary Research on AHS was conducted jointly by PWRI and 24 private automobile and electronic engineering companies, and demonstrations were conducted using nine test vehicles for automated cruising and five test vehicles for the Road Incident Detection and Warning Function.



PWRI test track

[Key Demo Features]


The demonstrations tested basic technologies in automated cruising and the capabilities of the Road Incident Detection and Warning Function, both systems that can be developed relatively quickly.

(1) Basic Experiment for Automated Highway System
In a prototype system, speed instructions from a Leaky Coaxial Cable (LCX) are sent to vehicles for automatic execution of acceleration and brake control based on road structure, surface conditions, traffic concentration, etc. Also, detectionof Magnetic Markers embedded in the surface along the side of the lane and lane detection with a compact CCD camera were demonstrated.


AHS Demonstration Tests (PWRI test track)

(2) Test of the Road Incident Detection and Warning System
Cars stalled on the road due to accidents and fallen objects or debris are detected and identified automatically, with roadside sensors and transmitted to following vehicles via LCX and display via in-vehicle CRT, etc.


Example of accident warning display




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