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There are three key words to improve traffic congestion at an intersection.

1. Design of intersection:

If they are not suitable for traffic flow, turn vehicle block other flows and the total flow rate go down.

2. System construction:

The equipment should be installed at suitable locations and the signal parameter should be adjusted so as to adapt traffic flow.

3. Operation and Maintenance:

The traffic conditions are changing year by year, so the maintenance includes signal parameter check , hardware check and software check and improvement.

Operation and Maintenance


  • Field experiment of traffic control and bus priority system with Tongji University
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