交通信息与安全2018，Vol.36Issue(1)：35-40,56,7.DOI:10.3963/j.issn.1674-4861.2018.01.005
基于高速公路事故预测的主动式巡逻车应急响应研究
Active Emergency Response of Patrol Car on Freeways based on an Accident Forecast Model
摘要
Abstract
Patrol cars play an important role in emergency response of traffic safety on freeways.Existing studies are based on prior history,accident data,or structure of road network,the essence of which is static and inflexible.Based on accident data,traffic flow,occupancy,and speed,a real-time forecast model for accidents is developed using Gradient Boosting Decision Tree(GBDT)method.Entity,states,and attributes of the patrol system are analyzed,and a discrete event simulation model for emergency response of patrol cares is developed.Computer simulation technology is applied to study the influences of accuracy and error rate of forecast on emergency response time.Compared with the time in normal state,the simulation results show that the average response time decreases from 23.5 min to 17.2 min on weekdays.关键词
交通安全/高速公路/事故预测/仿真分析/应急响应Key words
traffic safety/freeway/accident forecasting/simulation analysis/response time分类
交通工程引用本文复制引用
王璐,朱宁..基于高速公路事故预测的主动式巡逻车应急响应研究[J].交通信息与安全,2018,36(1):35-40,56,7.基金项目
国家自然科学基金重点项目(71431005)资助 （71431005）
