路段人行横道信号感应控制算法研究

发布时间：2018-05-12 01:20

本文选题：智能交通 + 行人过街　；参考：《重庆交通大学》2014年硕士论文

【摘要】：过街行人与机动车相互干扰一直是交通控制与管理的难题。在机动车和行人流量波动较大的长路段,行人过街定时控制会导致相位大量损失,若根据实时变化的机动车和行人流量实行感应控制,灵活给予双方放行时间,可以减少双方延误以及行人违章率。本文以现有感应控制方式为基础,将行人过街需求融入到控制系统中,寻求机动车和行人双方最大效益,提出了适合人车交通特性的路段行人过街感应控制算法。首先,通过对路段信号控制人行横道实地调研以及数据采集,在现有理论基础上,分别对路段行人过街行为特性与人车交通流特性进行分析,为感应控制算法研究提供理论依据。其次,针对现有感应控制人行横道存在的问题,本文结合感应控制基本原理以及行人过街信号配时理论,以行人和机动车总体平均延误最低为目标,依靠交通信息检测技术,充分考虑行人的心理忍受能力,根据行人过街需求量、机动车流量以及车流间隙,给出了路段人行横道一次过街感应控制算法。在此基础之上,针对跨度较大的人行横道,结合二次过街相关理论、信号控制人行横道机动车与行人延误机理,提出“人行绿波”协调思路,给出了路段人行横道二次过街感应控制算法。最后,同时考虑对向行人的干扰因素与本向行人由于速度差异造成的影响,结合信号控制有倒计时人行横道行人过街特性提出了新的行人过街格子气仿真模型,并将其编成行人仿真软件CAperson。利用Vissim交通仿真软件以及CAperson行人仿真软件对设计的感应控制算法进行了仿真验证。根据仿真验证结果,给出了路段人行横道感应控制算法适用性条件。
[Abstract]:Cross-street pedestrian and motor vehicle interference has been a difficult problem of traffic control and management. In the long section of vehicle and pedestrian flow fluctuating greatly, pedestrian crossing timing control will lead to a lot of phase loss. If according to the real-time change of motor vehicle and pedestrian flow to implement induction control, flexible give both sides release time, Reduce both delays and pedestrian violations. Based on the existing induction control methods, the pedestrian crossing demand is integrated into the control system, and the maximum benefit of both the vehicle and the pedestrian is sought, and a pedestrian crossing induction control algorithm suitable for the traffic characteristics of man and vehicle is proposed in this paper. First of all, based on the existing theory, the characteristics of pedestrian crossing behavior and pedestrian traffic flow are analyzed based on the field investigation and data collection of signal-controlled crosswalk. It provides a theoretical basis for the research of induction control algorithm. Secondly, aiming at the problems existing in the existing induction control crosswalk, this paper combines the basic principle of induction control and the theory of pedestrian crossing signal timing, taking the minimum average delay of pedestrian and motor vehicle as the target, relying on traffic information detection technology. Considering the psychological tolerance of pedestrians, according to the demand of pedestrians, the flow rate of vehicles and the gap of traffic flow, the inductive control algorithm of pedestrian crossing is presented. On this basis, aiming at the long span crosswalk, combined with the related theory of secondary crossing, the mechanism of vehicle and pedestrian delay is controlled by signal, and the coordinated thought of "pedestrian green wave" is put forward. The second cross-street induction control algorithm is given. Finally, considering the influence of the interference factors to the pedestrian and the velocity difference of the local pedestrian, a new pedestrian crossing grid gas simulation model is proposed in combination with the pedestrian crossing characteristics of the signal control with countdown crosswalk. And it is programmed into the pedestrian simulation software CAperson. Vissim traffic simulation software and CAperson pedestrian simulation software are used to verify the designed induction control algorithm. According to the simulation results, the applicable condition of induction control algorithm is given.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.54

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