In order to protect the safety of pedestrians and non-motor vehicles crossing the intersection, sometimes a right turn traffic light has to be set in the road intersection. Regarding a road intersection with the right turn traffic light, in order to make a trade-off between the safety of pedestrians and the reduction of right-turn movement delay, the key issue is the signal timing of red light for right-turn. Based on the characteristic of pedestrians or non-motor vehicles passing through the intersection, this paper analyses several factors' influence on signal timing for right turn traffic light, including pedestrians crossing time, pedestrians crossing speed, pedestrians queuing evacuation time, non-motor vehicles crossing time, non-motor vehicles crossing speed, non-motor vehicles queuing evacuation time, the volumes of pedestrians and non-motor vehicles and the traffic volume gap between peak period and non-peak period, and so on. Then we establish a formula of signal time setting for right turn traffic light. Finally, it is pointed out that right turn traffic light should be adjusted dynamically according to real-time traffic condition.
The Signal Timing of Right Turn Traffic Light at Urban Road Intersections
Second International Conference on Transportation Engineering ; 2009 ; Southwest Jiaotong University, Chengdu, China
2009-07-29
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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