基于实际车道的3维动态分段方法1

Lane-based 3D Dynamic Segmentation Methodology

已有的2维动态分段方法基于道路中心线网络模型,难以满足实际的面状和体状事件的3维动态分析与可视化需要。本文提出了基于实际车道的3维动态分段方法,以3维空间中的实际车道带作为基准,建立基于"弧段-距离-车道序号"的线性参考,显著提高了定位精度,提出了基于点序规则和基于语义规则的描述方法,实现了交通设施和交通事件灵活逼真的表达。理论对比分析证明了该方法的有效性。

The traditional 2D dynamic segmentation approach, which developed from roadway centerline network model, inhabits the increasing needs of flexible 2D or 3D applications because they are strictly one dimensional and thus, are unable to support the lateral and vertical dimension of events. In this paper, a novel lanebased 3D dynamic segmentation approach, shortly 3DDS, is proposed. The datum is set directly on the 3D lane ribbon, while ＂link distance lane sequence＂ based linear reference method and two events description alternatives （point sequence-based description and semantic-based description） are developed. The 3DDS is proved to be robust and effective through theoretical comparison analysis.