Patent ID: 11941979
Assignee: ZHEJIANG LAB
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The traffic light control method for an urban road network based on expected return estimation according to claim 1, wherein in step (3.1), the road priority index is calculated as follows:

priorityfactor=normal(queuelength)*normal(avg_delay)*normal(avg_traveltime)

where priorityfactor represents the road priority index, queuelength represents a queue length of the incoming lane, the queue length of the incoming lane is the total number of a vehicle with a speed less than 0.01 m/s, normal represents a dimensionless treatment of three factors by a Min-Max method, avg_traveltime represents an average driving time of all vehicles in the incoming lane, and avg_delay represents an average delay of the vehicles in the incoming lane, and the avg_delay is calculated as follows:

avg_delay=1−avg_speed/speed_limit

where avg_speed represents an average speed of all vehicles in the incoming lane, and speed_limit is a maximum speed limit in the incoming lane.