Abstract
This paper deals with a development of a new rutting evaluation index based on the vehicle dynamics taking into account mt shape, the mtting/vehicle interaction, and driver sensitivity. The result of lane change at the proving ground shows that the mtting affects the vehicle rolling behavior consisted by the frequency band above 0.8Hz. The Half-Car model which is the conventional vehicle simulation model is effective to represent the roll response induced by the rutting. Then, we develop two indices which are accumulation value of roll angle/roll rate obtained from Half-Car simulation to evaluate the rutting. From result of the subjective assessment survey by a driving simulator, we conclude that the accumulation value of the roll rate as the index has the strong relationship with road usefs senses.
