城市复杂道路网络T-GIS数据模型

T-GIS Data Model for Urban Complex Road Network

摘要:

针对现代城市复杂交通网络现状，提出以交通地理信息系统（transportation-geographic information system, TGIS）数据模型来描述、城市复杂道路网络的复杂特性.首先以复杂网络理论验证城市道路网络的复杂特性，其次从道路网络综合描述属性表达和网络数据逻辑关系3个方面构建城市复杂道路网络TGIS数据模型.实践证明，本TGIS模型具有很好的应用效果，很好表达道路网络空间信息及复杂逻辑关系，为道路拥堵和路径诱导及城市道路网络演化研究提供所需数据，且具有较好的推广价值.

Abstract:

According to the complex situation of modern urban transportation network, a new T GIS data model for urban complex road network (UCRN) was esfablished to describe its complex characteristics. First, the complex network theory was introduced to validate the complexity of road network. Then on the basis of three aspects such as the comprehensive description of UCRN, the attribute expression, and the internal logical relationship of UCRN, T GIS data model was constructed. Finally, T-GIS data model proved to be effective in applications, and clearly represented spatial information and internal logic relations of UCRN. The study provides desired data for road congestion and traffic flow analysis, route induction and road network evolution.