Section4 Increasing the Efficiency of Administration and Road Management

Information Networks and Advanced Databases

Monitoring of traffic congestion - deployment of probe cars -

Outcome indices

Annual losses can be estimated using the traveling time and traffic volume data collected by the probe cars system., and hence the effects of road construction projects can be monitored by estimating annual losses due to congestion. The system can also estimate the losses caused by congestion for each route.

Loss by traffic congestion per kilometer for each prefecture

Map and Bar graph image

States of traffic congestion in Tokyo Metropolis

3-D map and graph image


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