Optimal safety spacing for the car following of adaptive cruise controlled vehicle

The GMIT model, the most stable one among the several car following models, was adopted for this study. The equilibrium condition that the leading vehicle and following vehicle are at the same velocity was assumed so thatthe optimal distance at various velocities of the leading vehicle could be obtained. Based on the simulation, it was possible to identify decreasesin the safety distance .The optimum safety distances at various speeds were identified, and the results provided good indicators for implementing future automated highway systems. For the covering abstract see ITRD E140665.