城市路网交通语义模型研究  

Research on Traffic Semantic Model of Urban Road Network

作　　者：蒙子昕 唐婕 曹瑾鑫[1] MENG Zixin;TANG Jie;CAO Jinxin(Institute of Transportation,Inner Mongolia University,Hohhot 010070,China)

机构地区：[1]内蒙古大学交通学院,呼和浩特010070

出　　处：《内蒙古大学学报（自然科学版）》2021年第1期80-87,共8页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家自然科学基金(71961024);内蒙古自治区关键技术攻关计划项目(2019GG287);内蒙古自然科学基金(2020MS05060)。

摘　　要：针对现有路网数据模型动态性弱,语义表达不清晰,不支持路网交通属性在一定范围内编辑修改等问题,提出了一种基于传统路网语义的分层城市路网交通语义动态编辑模型。采用多种路网语义数据,通过生成算法及曲线拟合算法设计成具有耦合关系的层次结构。通过输入车道的矢量数据生成语义的数据,动态修改路网的交通属性后,对层次结构模型进行修改,重新计算后即可完成对路网语义数据的动态更新。仿真结果表明,该模型可正确完成交通路网语义建模,支持道路交通属性的动态编辑并实现交通相位自动生成。Aiming at the problems such as weak dynamics,poor randomness,unclear semantic expression,and not supporting the editing and modification of road network traffic attributes within a certain range,a hierarchical urban road network traffic semantic dynamic editing model based on traditional road network semantics is proposed.A variety of road network semantic data is adopted,and a hierarchical structure with a coupling relationship is designed through a generation algorithm and a curve fitting algorithm.This method generates the above semantic data through the input lane vector data,dynamically modifies the traffic attributes of the road network,and only needs to modify the hierarchical structure model.Then the dynamic update of the semantic data of the road network can be completed by recalculating.The simulation results show that this model can correctly complete the semantic modeling of the traffic network,and it supports the dynamic editing of the road traffic attributes,so as to realize the automatic generation of traffic phase.

关 键 词：城市路网 语义建模 分层结构 

分 类 号：U121[交通运输工程]