基于有限状态自动机的车道变换模型  

Lane Changing Model Based on Finite State Automaton

作　　者：张发[1] 宣慧玉[1] 赵巧霞[2] 

机构地区：[1]西安交通大学管理学院 [2]中国人民解放军空军工程大学电讯工程学院,陕西西安710077

出　　处：《中国公路学报》2008年第3期97-100,111,共5页China Journal of Highway and Transport

基　　金：教育部高等学校博士学科点专项科研基金项目(20070421118)

摘　　要：为了解决车道变换模型中采用Gipps换道框架计算效率不高的问题,提出了一种车辆行驶的有限状态自动机框架,该框架能够容纳选择性换道和强制性换道,使驾驶员从当前状态出发进行局部决策。同时提出了基于临界距离的强制性换道需求产生条件和基于前方交通状态的选择性换道需求产生条件,推导了基于前后临界空当的换道安全条件,开发了交通仿真软件,并在二车道道路上对模型进行了验证。结果表明:该模型能够再现真实的交通流宏观特性和换道行为微观特性。In order to solve the problem that Gipps lane changing framework calculation is inefficient in lane changing model, a vehicle moving framework based on finite state automaton was proposed. Both discretionary and mandatory lane changing can be modeled in the framework. The driver was in certain state and made decision locally. Authors analyzed the condition of intention generation of mandatory and discretionary lane changing corresponding to critical distance and frontage traffic state respectively, and derived the critical lead and follow gap for safety. A traffic simulator was developed to validate the model in a two-lane road. The results show that the model can regenerate the realistic macroscopic characteristics of traffic flow and the microscopic characteristics of lane changing.

关 键 词：交通工程 车道变换 有限状态自动机 仿真 

分 类 号：U491.223[交通运输工程—交通运输规划与管理]