Study of driver trust during cooperation with adaptive cruise control

Abstract

This paper examines driver trust during cooperation with an Adaptive Cruise Control (ACC), an Intelligent Driver Support System that can replace drivers for the longitudinal control of a vehicle. We present a theoretical framework based on the construct of trust in the cooperation between the operator and the automated control. An experiment was carried out using a mini-driving-simulator and an ACC with a preset reference speed and time headway of 130 km/h and 1.5 s, respectively. Questionnaires were used to analyse drivers trust. The main finding of the study is that the distinction between trust in ACC and trust in the cooperation with die device seems to be relevant. Trust in the cooperation with ACC seems to result from a combination of self-confidence and trust in ACC, The results are discussed in terms of the weaknesses in the methodology.