【摘要】 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。更多还原

【Abstract】 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 lane-based 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.更多还原