基于自然驾驶数据的变道切入行为分析

基于上海自然驾驶数据,建立变道切入行为自动化提取标准,得到4 734个行为片段.从变道切入准备、实施过程以及对后随车的影响等方面解析变道切入行为特征.结果表明,规避原车道前方慢车是车辆采取变道切入行为最主要的原因;中国驾驶员的变道切入持续时间与转向灯使用比例均小于美国,表现出较为激进的驾驶风格;近15%的后随车驾驶员在前车变道切入时速度增幅超过10%,表现出明显的不礼让或不容忍.相比于高速公路和快速路,地面道路的变道切入行为对后随车的影响更大,危险程度也更高.

Cut in Behavior Analyses Based on Naturalistic Driving Data

Based on the realistic driving behavior data collected by Shanghai Naturalistic Driving Study, an automatic extraction algorithm was developed and 4 734 cut in events were identified. This study aims to make in depth analyses on the characteristics of cut in preparation, execution and its impacts on the following vehicle. The results show that cut ins are mostly motivated by avoiding slow preceding vehicles in the original lane. Cut in duration and turn signal usage of the Chinese drivers are both less than those of the United States, which shows a more aggressive driving style. About 15% of the followers accelerate with a speed change rate of more than 10% in response to cut in behavior for their discourtesy or intolerance. Compared to freeways and expressways, the cut in behavior on surface roads has a greater impact on the following vehicles and it is more dangerous with higher risks.