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为了给基于GIS-T的交通仿真平台提供数据支持,构建了基于GIS-T路网数据模型,增强了对交通规则和路面标线描述;在数据模型的基础上,量化了线性参考系统截取量,给出了GIS-T路网单元的构造方法,包括车行道分界线和路面的构造方法;提出有向子路段是保证子路段几何完整性的基本单元,给出路网构建流程;构建了一个典型的十字交叉口,并把构建的路网转换成Paramics和Vissim仿真路网,验证了GIS-T路网在交通仿真中应用的可行性。对比GIS-T路网与仿真路网,得到GIS-T路网在描述交通规则和标线方面的优势。
In order to provide data support for the traffic simulation platform based on GIS-T, a data model based on GIS-T network was constructed and traffic rules and pavement markings were enhanced. On the basis of the data model, the intercept amount of linear reference system , The construction method of GIS-T road network unit is given, including the construction of roadway demarcation line and pavement; the directed sub-section is the basic unit to ensure the geometric integrity of sub-section, and the road network construction process is given; A typical crossroads, and transform the road network into Paramics and Vissim simulation road network, verify the feasibility of GIS-T road network in traffic simulation. Compare the GIS-T network with the simulation network, and get the advantages of GIS-T network in describing traffic rules and marking.