基于最大车速的广义力跟驰模型  

Generalized force model of car's following based on maximum velocity

作　　者：许世燕[1] 贺昱曜[1] 李渊 

机构地区：[1]长安大学信息工程学院,陕西西安710064 [2]西安曲江新区建设工程质量安全监督站,陕西西安710061

出　　处：《长安大学学报（自然科学版）》2007年第1期72-75,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：国家自然科学基金项目(60472022)

摘　　要：为了更有效地模拟城市交通流,尤其是城市交叉口交通流的运行状况,在研究跟驰状态中车辆行驶特性的基础上,考虑车辆行驶的最大限制速度,提出了一种基于最大车速的广义力模型。将该模型与Helbing-Tilch广义力模型分别用于模拟车辆经过信号交叉口的动态运动,并采用实际道路上车辆的跟车数据仿真跟车情况。结果表明,该模型不仅消除了Helbing-Tilch广义力模型存在的停车间距过大问题,而且仿真效果更接近实际的交通流特性。Based on the characters of car＇s following states, a new generalized force model is proposed. The model is based on the maximal velocity. Compared with the GF model proposed by Helbing and Tilch, the new model adds a maximum velocity function to the OV function. The state that the cars pass the signalized intersection is simulated with both models. The simulation results show that Helbing-Tilch GF model presents a too large distance between cars on the red light. But the new model can eliminate the large distance. Then both of models are verified with field data obtained from a road. The results indicate that the new model has better features than the Helbing-Tilch model. 1 tab, 4 figs, 11 refs.

关 键 词：交通工程 广义力模型 最大车速 跟驰模型 信号交叉口 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]