道路网数据模型是对各种道路相关信息进行描述以支持移动对象位置信息获取及表示的数据模型。
The road-net data model describes the related information of road in order to support capturing and expressing the position information of moving object.
将平面路网数据模型与节点高差以及方向车道结合，提出一种基于非平面的路网数据模型，用以表达实际的非平面路网。
In the model, node height difference is combined with direction lane to express the real non-planar road networks and a way of its implementation is discussed.
基于基态修正模型以及对象版本管理的思想，提出用于动态道路网络数据管理的时空数据模型。
A spatiotemporal data model is proposed to represent dynamic road networks based on base State with Amendments model and object-version management theories.
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