Evaluation of signal retiming measures on arterial corridors using bluetooth travel time data

信号交叉口是城市主干道的通行瓶颈。在城市日益拥挤和财政紧张的情况下，需要以最具成本效益的方式最大限度地利用现有能力。沿动脉走廊周期性重新定时的信号已被证明提供显著的好处。重新计时研究需要收集一组“之前”数据和“之后”数据，以评估建议的信号计时的有效性。目前收集这些数据的方法是通过驾驶配备GPS数据记录器的专用车辆沿着走廊多次记录旅行时间。这种方法成本很高，并且沿着走廊的旅行时间很少。

Signalized intersections represent the capacity bottlenecks of arterial roadways in urban areas. Within increasing levels of urban congestion and fiscal constraints, there is a need to maximize the use of the existing capacity in the most cost-effective manner. Periodic re-timing of signals along arterial corridors has been shown to provide significant benefits. Re-timing studies require the collection of a set of "before" data and "after" data to assess the effectiveness of the proposed signal timings. The current approach to collecting these data is to record travel times by driving a dedicated vehicle equipped with a GPS data logger along the corridor a number of times. This approach is costly and leads to a small number of travel times along the corridor.