京藏高速公路货车限行措施仿真研究（英文）  

Simulation Study for Truck Restriction Strategies on Jingzang Expressway in Beijing

作　　者：杨森炎 吴建平[1] 刘明宇 何磊 

机构地区：[1]清华大学土木工程系,北京100084 [2]北京市公安局公安交通管理局,北京100037

出　　处：《系统仿真学报》2017年第10期2432-2439,2446,共9页Journal of System Simulation

摘　　要：货车限行措施能够有效提高高速公路的通行能力,缓解交通拥堵。通过建立微观交通仿真模型,分析货车限行措施及货车事故对高速公路交通状态的影响。基于京藏高速公路的实地调研数据标定模型参数,设定5个不同的货车限行时间段仿真方案,并模拟货车事故发生后的疏散情况。结果表明货车禁行最合适的时间段是7:00~19:00,小客车旅行时间降低了10%,且货车在8:00之前完成疏散;其他方案则会导致货车滞留,影响第二天早高峰的交通状态;货车事故会导致车辆在高速路上大范围排队滞留。Lane restriction strategy for trucks is an effective way to improve the capacity of expressways and ease traffic congestion. Microscopic simulation models were employed to assess the impacts of restriction strategies and truck accidents on expressway traffic condition. Parameters were calibrated and validated based on the field data of Jingzang Expressway. Five simulation scenarios with different time setting for trucks＇ no passing were established, and evacuation after truck accident was simulated. Simulation results indicate that the most suitable time for trucks＇ no passing is from 7：00 to 19：00. The travel time of small passenger cars can be reduced by 10%, and all the trucks can be evacuated from the expressway before 8：00. The other scenarios can lead to trucks＇ retention, affecting the traffic conditions in the morning peak hours of the next day. Truck accidents could result in the delayed vehicles＇ lining along the expressway.

关 键 词：微观仿真模型 交通安全 货车限行策略 交通事故 高速公路 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]