ABSTRACT

The introduced investigation deals with the description and analysis of the driver's natural anticipation horizon and resulting driving behavior in deceleration situations. The evolution of the anticipation horizon is reflected by the change in the driver's situation and resulting actions through a course of time. Therefore, multiple points in time span during a deceleration situation are accounted for in the analysis. These points correspond to a change of driving situation and/or driver's situation, and are attributed by characteristic measurements. These are the metric distances to the situation, Time-to-ColJision or Time-to-Contact (TTC) with the situation relevant objects, as well as the executed driving actions. The observed time and spatial span of the driving behavior is evaluated with respect to the safety, comfort, and efficiency in fuel consumption. This explores the potential of an anticipation improvement via the advanced driver assistance systems.