12 / 2019-06-01 11:19:24

Research on Minimum Safety Distance Model of Trucks on Slope-curve Section of Expressway

slope-curve section,truck,driving speed,minimum safe driving distance,trucksim simulation

In view of defects in the existing minimum safety distance model, a model for calculating the safe distance on slope-curve section was built based on truck brake system and by fully considering the characteristics of drivers’ driving behaviors and defining the scope of slope-curve section of expressway, and the slope acceleration parameters of “slope-environment” were proposed to effectively calibrate the model, thus providing a basis for selecting the distance value of trucks and the location of traffic signs on slope-curve section. Besides, a following model for trucks was established with TruckSim 2016 software to analyze various indicators such as vehicle slip ratios and vehicle interval value under upslope and downslope states, which verified the effectiveness of the safe distance model.