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基于PARAMICS仿真的城市双向四车道公交专用道设置影响研究

2020-08-31尚佳奇孙永擘

价值工程 2020年23期

尚佳奇 孙永擘

摘要:公交专用道是在有限的城市道路资源情况下,进一步发掘道路运输潜力,提高公交运行速度、增强公交的吸引力,促进城市交通的绿色、可持续发展。但是城市公交专用道在有效实现公交优先的同时,进一步加深了社会车辆与有限道路资源之间的矛盾,尤其对于城市双向四车道道路,这种矛盾尤为突出。由于路段是道路的基本组成单元,本文通过Paramics仿真软件,建立设置公交专用道和不设置公交专用道两种情况下的双向四车道路段交通仿真模型,并对其进行仿真分析,分析在不同的交通量和公交车流量的各种交通状态下,设置公交专用道前后,其对路段公交车运行速度、社会车辆行程时间总延误及社会车辆运行速度三方面产生的影响进行研究分析。

Abstract: Under the condition of limited urban road resources, the bus lane is to further explore the potential of road transportation, increase the speed of public transportation, enhance the attractiveness of public transportation, and promote the green and sustainable development of urban transportation. However, while the urban bus lanes effectively realize public transportation priority, they further deepen the contradiction between social vehicles and limited road resources, especially for urban two-way four-lane roads, this contradiction is particularly prominent. Because the road section is the basic unit of the road, this article uses Paramics simulation software to establish a two-way four-lane road section traffic simulation model with and without bus lanes, and conduct a simulation analysis on it. Under various traffic conditions with different traffic volumes and bus flows, before and after the establishment of bus lanes, the impact on the road section bus speed, total delay of social vehicle travel time, and social vehicle speed is studied and analyzed.

關键词:Paramics仿真;公交专用道;双向四车道;公交车运行速度;行程时间总延误

Key words: Paramics simulation;bus lane;two-way four-lane;bus operating speed;total travel time delay

中图分类号:U491.51                                      文献标识码:A                                  文章编号:1006-4311(2020)23-0219-04

0  引言

公交专用道是公交优先系统的重要组成部分,公交专用道的设置能很好的协调路段公交车流与社会车流之间的关系,实现道路资源的有效利用,充分发挥道路运输潜力。一般的,设置公交专用道的路段,道路的物理条件必须满足一定的要求。一般选取路段机动车车道数双向六车道及以上的路段设置公交专用道,在路段上设置公交专用道后,会引起路段各个车道利用率的不均衡。但是,对于双向四车道的路段,如果设置公交专用道,仅剩下一条车道供社会车辆通行,从理论上来说是可行的,但是设置公交专用道后,路段一半以上的路权都属于公交车,而一般路段公交车占路段的流量的比例很少达到50%。……

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