混合交通交叉口混行程度分析与分类方法  

Study on the Level and Classification of Mixed Traffics at Urban Road Intersections

作　　者：陈振起 盛长元 刘剑锋[2] 何韬[3] 

机构地区：[1]江苏省扬州市规划局城市规划编制研究中心,江苏扬州225002 [2]北京交通发展研究中心,北京100055 [3]北京交通大学城市复杂系统理论与技术教育部重点实验室,北京100044

出　　处：《交通运输系统工程与信息》2011年第A01期8-13,共6页Journal of Transportation Systems Engineering and Information Technology

摘　　要：大多数发展中城市的道路交通都具有机非混合交通特点,但不同城市或同一城市不同区域的机非混行程度不尽相同,不同的混行程度对交通组织方法与管控方案的要求也不尽一致.本文主要研究城市道路平面交叉口混合交通环境的识别以及基于这种识别的混合交通交叉口分类方法.首先根据混合交通环境下与纯机动交通环境下车辆通过交叉口所用时间的差异,确定交叉口范围内非机动车与行人对机动车干扰的差异,然后在此基础上实现对不同混行程度的定量描述.研究表明,机动车所受到的干扰总体上随行人与非机动车流量的增长而增强,但当行人与非机动车流量达到一定水平后,机动车所受干扰将趋于稳定;对于不同交叉口来说,车辆所受干扰的差异比较明显.最后,介绍了依据混行程度(干扰差异)对混合交通交叉口进行分类的方法.以北京市道路交叉口实际运行数据为基础,利用该方法得出北京市道路交叉口一种新的分类方案建议.Most developing cities are characterized by their mixed traffics involving motorized vehicles,non-motorized vehicles and pedestrians.Under this heterogeneous condition,motorized vehicles are inevitably disturbed by non-motorized vehicles and pedestrians.However the extent of disturbing could be different in different cities,or in different areas of a city.It is important to find out the differences of disturbing for traffic managers to develop effective and efficient measures to manage the mixed traffic.This research devotes to describe and distinguish the differences of disturbing at intersections in developing cities and then develop a novel method to classify these intersections.It employs the time a vehicle uses to pass the intersection as a key indicator and captures disturbing features by comparing values of this indicator between two different conditions of only motorized traffic and mixed traffic.It is found that the disturbance will initially get more intense and then tend to be stable as the volume of non-motorized vehicles and pedestrians increases.It also shows that an intersection pools very close disturbances among its vehicles,but different intersections have very different disturbances.The findings yield the methodology applying to classify mixed traffic intersections.This study is conducted based on field data from Beijing city.Consequently a recommended table of re-sorting Beijing＇s intersections under conditions of mixed traffic is also drawn out.

关 键 词：城市交通 混合交通 交叉口 交叉口通过时间 混行程度 

分 类 号：U491[交通运输工程—交通运输规划与管理]