Section4 Increasing the Efficiency of Administration and Road Management

Information Networks and Advanced Databases

Monitoring of traffic congestion - deployment of probe cars -

Project assessment

Probe cars helps projects for mitigating bottlenecks to be assessed by comparing data before and after the project.

For example, for a project for widening the Ariake Bridge (Niigata), the system estimated that the project reduced annual losses by 25,900 hours and 106 million yen.

Change in average traveling time before and after widening of the bridge

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