基于风险域的城市道路交叉口交通冲突分析方法

Analytical Method of Traffic Conflict at Urban Road Intersections Based on Risk Region

摘要:

提出了基于风险域的交通冲突分析二阶段法。采用inD数据集，通过车辆到达风险域的时间（t_TTR）进行交通冲突识别，再根据风险域内的持续时间来判定交通冲突的风险程度。结果表明：与基于碰撞时间（t_TTC）的方法相比，该方法不仅能够更有效地识别追尾冲突和相交冲突，还能够表征不同时刻交通冲突的风险程度。

Abstract:

A two-stage method of traffic conflict analysis was proposed based on risk region. By using the inD dataset， traffic conflicts were recognized with the calculation of time to risk region（t_TTR）， and then the degree of traffic conflict risk was judged by risk region duration. Compared with the method based on time-to-collision（t_TTC）， the proposed method can not only identify rear-end conflicts and crossing conflicts more effectively， but also characterize the degree of traffic conflict risk at different times.