基于BPR模型的小区开放对道路通行的影响分析

Influence Analysis of Community Opening on Road Traffic Based on BPR Model

摘要: 随着城市交通压力的加大，小区开放的话题也越来越多地被提及。本文通过研究交通灯对交通的干扰程度，不同类型的车辆在交叉口的不同状态和不同路段交通拥挤程度等指标，建立速度–车辆密度模型。通过比较不同时期同一段道路的车流量，可知小区开放后车辆通行数量增加，缓解了交通压力，既提高了区域路网密度又提高了交通可达性；在考虑延误时间和二次排队率的基础上，在小区规划中引入公交，并通过优化小区选址、合理规划小区内部道路结构，增加小区内部道路和外围道路的协调性。

Abstract: With the increase of urban traffic pressure, the topic of community opening is more and more mentioned. In this paper, by studying the traffic light on traffic disturbance degree, different types of vehicles in the intersection of different states and different degrees of road traffic congestion index, speed-vehicle density model is set up. By comparing the traffic flow of the same road in different periods, it can be seen that the number of vehicles increases after the opening of the community, which relieves the traffic pressure, improves the density of regional road network and improves the accessibility of traffic. On the basis of considering the delay time and the second queuing rate, the public transportation is introduced into the planning of the community, and the coordination between the internal roads and the peripheral roads is increased by optimizing the site selection of the community and rationally planning the internal road structure of the community.