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基于浮动车停车点数据交叉口车辆排队长度计算方法

, PP. 119-124

Keywords: 智能运输系统,车辆排队长度,交叉口,浮动车数据,地图匹配,停车点,GPS定位

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Abstract:

浮动车数据中存在许多行驶速度为零的停车点数据记录,它们和交叉口车辆排队长度存在一定的空间关系.针对此提出一种新的基于浮动车停车点数据计算交叉口前车辆排队长度的方法.首先根据车辆停车点地理位置和正常行驶点的连续关系及和路段的相对位置进行地图匹配,提取出路段上交叉口前正常排队停车点数据;然后从正常排队停车点数据中计算出相对交叉口的浮动车数据相对位置关系,根据对浮动车停止点距离交叉口的位置密度分布变化进行2次统计计算,推算出交叉口前车辆排队长度.最后通过实际浮动车数据计算实例对本方法进行了说明和验证.

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