Truck Crash Scenarios Construction and Causation Analysis

Abstract:

The pre-crash scenarios for trucks were constructed based on crash data and real world in-vehicle data. Forty types of functional scenarios for trucks were derived， and the logical scenarios for trucks were parametrically described by combining vehicle motion parameters and driving behavior parameters. The crash causation chain for trucks were mined and the crash causations were analyzed by the Driving Reliability and Error Analysis Method （DREAM）. It was found that： Rear-end and side collision were the main trucks crash scenarios， accounting for 24.7% and 37.2%， respectively. For longitudinal collision scenarios， driver reaction time， braking effort， and following distance are important factors affecting the crashes of trucks. Differences in lateral departure distance and steering angle for longitudinal scenarios. Differences in drivers' lane departure behavior are important factors affecting the risk of crashes for trucks. Inadequate braking， late action， and too close a following distance are the key causes of longitudinal collisions. Wrong direction of travel， late braking and too high speed are the causes of lateral collisions.