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在综述国内外对交通冲突领域研究的基础上,详细介绍了冲突数据的采集方法,结合录像观测,对公路平面交叉口小汽车冲突开展专门研究,对一般冲突和严重冲突的冲突距离及冲突速度进行了数据采集,导出了冲突时间参数(TTC:time to collision),通过分析TTC累积频率分布图,对小汽车冲突的严重性进行了有效界定。最后,文章选择了10个交叉口进行冲突观测,对相关结论进行了假设检验。
Based on a review of the research on traffic conflict both at home and abroad, this paper introduces in detail the method of collecting the conflict data. Combining with the video observation, it studies the conflict of the car at the intersection of the highway and studies the collision distance and speed of conflict between general conflict and severe conflict The data acquisition was carried out, and the time to collision (TTC) was derived. By analyzing the TTC cumulative frequency distribution, the severity of the car collision was effectively defined. Finally, the article chooses 10 intersections for conflict observation and conducts hypothesis tests on the relevant conclusions.