An Investigation on Safety Performance Assessment of Close-Following Behavior of Heavy Vehicle Using Empirical-Simulation Technique

• 作者: Ahmad Saifizul Airul Sharizli Hideo Yamanaka Mohamed Rehan Karim Rahizar Ramli
• 来源期刊: 交通科技期刊(英文)
• 学科: 医学
• 关键词: Road SAFETY Vehicle OVERLOADING SAFETY INDICATOR Close-Following Traffic Accidents WEIGH-IN-MOTION
• 年，卷（期）: 2014,（1）
• 页码范围: 22-30
• 页数: 9页
• 分类号: R73

摘要

One of the main causes of rear-end crashes is attributed to close-following and hazardous driving behavior. A study was conducted to investigate the close-following behavior of heavy vehicle under various heavy vehicle categories, travel speeds and gross vehicle weights (GVW). Investigation is based on data obtained from simulation and empirical observations. A safety performance assessment of close-following behavior of heavy vehicles by using empirical-simulation technique is proposed. The simulation, which incorporates vehicle dynamics, is to generate the minimum safe time gap (MSTG) for truck-following-car situations. MSTG is defined as the minimum time required by the following vehicle to decelerate and stop without hitting the leading vehicle when both leading and following vehicles apply the emergency brakes. Based on comparison between the actual time gap data and the MSTG, a safety performance assessment technique that considers vehicle type, vehicle braking characteristics, truck GVW and speed is proposed for truck-following-car situation.