A Driving Simulator for Collision Avoidance Behavior after Braking

The brake process is composed of brake reaction and the vehicle deceleration after braking.In order to understand driver's collision avoidance behavior and develop a model of braking curve,it is important to understand how drivers behave after braking.Experiments are carried out over an eight-degree-of-freedom driving simulator.The behaviors of drivers after braking with different deceleration(0.3g,0.5g,0.75g)from the Lead Vehicle's(LV)and different initial headways(1.5s,2.5s)are analyzed.ANOVA is used to compare the braking maneuvers after braking across the above conditions.The results show that a)the Brake Pedal Rate is significant higher with short braking headway and is lower with small LV deceleration;b)the experienced drivers tend to have higher brake pedal rate compared to the novice drivers;c)compared with the changes in LV's deceleration,a driver is more sensitive to the change in headway.