单向交通条件下交叉口通行能力分析与仿真

Analysis and Simulation of Intersection Capacity in One-way Road Traffic

单向交通可大量减少交叉口冲突点、改善交通条件。基于HCM分析方法,对双向双车道十字交叉口实施单向交通前后的通行能力进行对比分析,给出了双向通行,一路双向、一路单向和两路单向3种交通条件下的交叉口的通行能力计算公式。以Corsim仿真模型为平台,以交叉口车辆平均信控延误为评价指标,对交叉口通行能力进行了验证。仿真结果表明,单向交通可提高交叉口的通行能力。

With the signalized intersection as research object, this paper firstly introduced the advantage of one-way road traffic in reducing intersection conflicts. Based on HCM arithmetic, the paper compared the intersection capacity before and after practicing one-way road traffic. Taking Corsim simulation model as a platform and using vehicle average delay as an evaluation index, the paper verifies that one-way road traffic has positive effect on alleviating intersection traffic conflict, and thus improves the traffic capacity.