关键词: 交通控制, 通过交通量, 信号配时, 延误

Abstract:

To reduce the vehicle delay time at oversaturated intersections, the improved F-B signal timing model was established. The procedures of cycle calculation in this model were the same as those in F-B method. The concept of “real traffic volume” was put forward when investigating the flow rate of each approach, and the delay model was used to evaluate the F-B method and the improved FB method. The case study indicated that, compared with the F-B signal timing model, the use of improved F-B model made the delay time of two neighboring intersections of Wenhua Road/Fushan Road and Wenhua Road/Hagongda Road decrease 34.39% and 28.05% respectively. The improved model can ease traffic jam effectively, and reduce vehicle queue length, and improve the intersection service level.

Key words: signal timing , real traffic volume, delay, traffic control