Turning vehicles often play an important part at signalized intersections owing to the conflicting movement of different traffic. In the real-world, the through movement of shared lanes is probably blocked by the right-turn movement because of the lag time. In this situation, the green time of shared lanes cannot be fully used. Meanwhile, the signal control of right-turn lag time is utilized in large quantities. In this paper, a mathematical model is presented according to the probability and combinatory theory. The capacity model was proposed to exactly calculate the blockage probability of right-turn movement caused by the lag time and the capacity of single-shared lanes at signalized intersections. The proposed model was verified by using microscopic traffic simulation software VISSIM. The results show that the simulated results were consistent with the theoretical model.
Modeling Capacity of Shared Right-Turn Lanes at Signalized Intersections Considering the Lag Green Time of Right-Turns
16th COTA International Conference of Transportation Professionals ; 2016 ; Shanghai, China
CICTP 2016 ; 985-997
2016-07-01
Conference paper
Electronic Resource
English
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