基于MATLAB仿真的间歇式公交专用道对交通安全影响的研究

基于MATLAB仿真的间歇式公交专用道对交通安全影响的研究摘要在全球现代化快速发展的背景下，由于道路资源有限，机动车数量的急剧增加导致交通拥堵、交通事故这些相关的安全问题的出现，交通拥堵浪费了出行者的大量时间，消耗了大量的燃料资源并且带来环境污染，同时也影响事故救援，甚至还会由于车辆密度密集问题造成一系列的交通安全事故。然而解决城市交通拥堵问题是一项复杂性的工作，公共交通的应用是解决交通拥堵的一项重要的措施，为了保证公交优先以及提高道路资源利用，间歇式公交专用道系统的应用是十分必要的，这也是解决交通安全问题的一项重要的措施。本文研究了间歇式公交专用道的运行规则，对传统双车道元胞自动机模型的换道规则进行改进，实现公交运行效率和道路空间利用率的双效提高，归纳了间歇式公交专用道的概念和特点，构建了基于元胞自动机模型的系统框架，并利用MATLAB软件进行仿真模拟，以分析不同交通流条件下的运行状况。通过这一方法，成功获取了车辆密度、速度以及流量等关键变量的模拟数据。为了更深入地理解这些变量之间的关系，利用MATLAB软件对密度-速度曲线进行了多项式拟合。进而将得到的函数关系应用于比较设置间歇式公交专用道与无公交专用道两种情况下的交通效率差异。针对间歇式专用道安全影响分析，在结合安全系统工程的原理和方法，对在传统双重车道元胞自动机模型下设置间歇式专用道后，辨识会对交通造成事故的危险因素，进行定性定量分析评价，并给出安全措施建议，预防交通安全事故发生。关键词间歇式公交专用道：元胞自动机模型：安全系统工程：安全措施A Study on the Impact of Intermittent Bus Laneson Traffic Safety Based on MATLAB SimulationAbstractIn the context of rapid global modernization,with limited road resourcesand a sharp increase in the number of motor vehicles,traffic congestion andrelated safety problems have emerged due to the rapid increase in traffic volume.Traffic congestion wastes a lot of travelers'time,consumes a large amount offuel resources,causes environmental pollution,and affects accident rescue.Itcan even cause a series of traffic safety accidents due to the problem of vehicledensity.However,solving urban traffic congestion is a complex task.Theapplication of public transportation is an important measure to solve trafficcongestion.In order to ensure bus priority and improve road resource utilization,the application of the intermittent bus lane system is necessary,which is also animportant measure to solve traffic safety problems.This paper studies the operation rules of the intermittent bus lane,improvesthe lane-changing rules of the traditional dual-lane cellular automaton model,and achieves a double improvement in bus operation efficiency and road spaceutilization.It summarizes the concept and characteristics of the intermittent buslane,builds a system framework based on the cellular automaton model,anduses MATLAB software for simulation to analyze the operating conditionsunder different traffic flow conditions.Through this method,the simulated dataof key variables such as vehicle density,speed,and flow were successfullyobtained.In order to gain a deeper understanding of the relationships betweenthese variables,polynomial fitting was performed on the density-speed curvesusing MATLAB software.The obtained function relationships were then appliedto compare the traffic efficiency differences between the scenarios with andwithout intermittent bus lanes.For the safety impact analysis of intermittent dedicated lanes,safety systemengineering principles and methods were combined to identify the dangerousfactors that would cause accidents in the traditional dual-lane cellular automatonmodel after the intermittent bus lanes were set up.A qualitative and quantitativeanalysis and evaluation were conducted,and safety measures were proposed toprevent traffic safety accidents.KeywordsIntermittent bus lanes,Cellular automata model,Safe