高架快速路辅助车道与集散车道效率研究

An Efficiency Research of Elevated Expressway Auxiliary Lane & Collector-distributor Lane

CJJ129—2009《城市快速路设计规程》中对于匝道出入口间距不能满足要求时,提出通过设置辅助车道或集散车道来解决,但未对其具体适用性给予规定。以上海中环线浦东段金桥立交与其相邻出入口布置为例,通过交通仿真分别对设置辅助车道和集散车道的效率进行比较,得出:对设置辅助车道方案,推荐采用单侧各设置2根辅助车道方案;对设置集散车道方案,推荐采用单侧各设置3根集散车道的方案。对于该工程采用单侧各设置3根集散车道的设计方案。

CJJ 129—2009 Specifications for Design of Urban Expressway mentions that,when the distance of entrance and exit does not content the requirement,we can solve it by setting auxiliary lane or collector-distributor lane.But it does not give us a specific applicability provisions.In this paper,taking Jinqiao Rd.Interchange(one part of Pudong section of The Central Ring Rd.) and its adjacent entrance and exit for example,the efficiency of setting collector-distributor lane or auxiliary lane is respectively compared by traffic simulation.The conclusions show that 1) to auxiliary lane plan,the setting condition of the two lanes separately for one direction is recommended;2) to collector-distributor lane plan,the setting condition of the three lanes separately for one direction is recommended;3) to this project,the design plan of setting the three collector-distributor lanes separately for one direction is recommended.