摘要
综合分析了交通量、大车率和限速值对施工区行车风险的影响。利用Vissim软件建立施工区仿真模型,以冲突率作为评价施工区行车风险的指标,运用MATLAB软件建立施工区行车风险评价模型并进行风险分析。结果表明:当施工区交通量达到1 650pcu·h^(-1)·ln^(-1)时,施工区处于非常危险水平的概率达到50%;在大车率处于0.2时,施工区处于较危险水平的概率达到99.8%;在40km·h^(-1)的限速值时,施工区处于较危险水平的概率为100%,将限速值提高至60km·h^(-1)将使施工区处于较危险水平的概率降低至11%。
In consideration of traffic volume,freight rate and the limit speed,the driving risk of work zone was analyzed synthetically.The simulation model of work zone was established using Vissim,and the conflict rate was used as the evaluation indicator of the driving risk of work zone,and the evaluation model was established in MATLAB.The results show that when the traffic volume of work zone reaches 1 650pcu·h^（-1）·ln^（-1）,the probability of very dangerous level of work zone reaches 50%;when the freight rate is 0.2,the probability of dangerous level of work zone reaches 99.8%;when the limit speed is 40km·h^（-1）,the probability of dangerous level of work zone reaches 100%;by increasing the limit speed to 60km·h^（-1）,the probability reduces to 11%.
出处
《筑路机械与施工机械化》
北大核心
2016年第6期63-66,70,共5页
Road Machinery & Construction Mechanization
