﻿ 交通事故对路段通行能力影响作用分析 Analysis on Road Capacity of the Segment under the Influence of the Traffic Accident

Operations Research and Fuzziology
Vol.05 No.03(2015), Article ID:15872,6 pages
10.12677/ORF.2015.53006

Analysis on Road Capacity of the Segment under the Influence of the Traffic Accident

Xin Wang

College of Science, Beijing Information Science and Technology University, Beijing

Email: bitimath@163.com

Received: Jul. 24th, 2015; accepted: Aug. 10th, 2015; published: Aug. 14th, 2015

Copyright © 2015 by author and Hans Publishers Inc.

ABSTRACT

The effects of traffic accident on road traffic capacity have been researched from some aspects including different lanes occupied, traffic flow of the road cross section and the length of vehicle queue. Some data after traffic accident has happened, such as the traffic flow from the upper section of accidence, have been collected to analyze the variation process of road capacity. Moreover, the difference and reasons of road capacity varying have been further studied when the different lanes have been occupied in the process of accident treatment.

Keywords:Traffic Flow, Road Capacity, Cross Section, Queue Length

Email: bitimath@163.com

1. 引言

2. 基本假设与名词解释

(1) 四轮以下机动车、电瓶车对交通流量无影响。

(2) 路段上游车流量在红绿灯周期内为定值。

(3) 所用统计数据真实可信且拟合曲线能够完全反映总体的特征。

3. 事故与道路通行能力的关系

3.1. 事故1所处横断面实际通行能力分析

Table 1. Vehicle flow at different time of video 1

Figure 1. Relation curve of vehicle flow and accident duration in video 1

3.2. 视频2事故所处横断面实际通行能力分析

Table 2. Vehicle flow at different time of video 2

Figure 2. Relation curve of vehicle flow and accident duration in video 2

3.3. 所占车道不同对该横断面实际通行能力影响的差异分析

4. 结论

(1) 合理规划车道，将非机动车道与机动车道用绿化带分开。若仅用车道线将机动车道与非机动车道进行划分，则驾驶员在行驶过程出于对行人安全的考虑，使得右侧车道的机动车行驶缓慢，容易造成车速降低，发生车辆集结，从而导致道路实际通行能力降低。

(2) 有交通事故发生时，一定要尽快启动交通特殊备用管理系统，协调好上游交叉路口信号灯周期与事故横断面车辆消散时间，确保上游道路需求量与事故道路实际剩余通行能力相符。

(3) 做好对道路的定时监测，对于车流量、车流密度较大的路段，要进行道路交通拥堵预警，通过实时信息反馈，提示驾驶员绕行。

Analysis on Road Capacity of the Segment under the Influence of the Traffic Accident[J]. 运筹与模糊学, 2015, 05(03): 39-44. http://dx.doi.org/10.12677/ORF.2015.53006

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