Evaluation of Mountain Road Influences on Driving Fatigue

Abstract

Driving fatigue was caused by complicated road alignments in mountains. In order to evaluate road environments on driving fatigue, the driver subjective feeling of tiredness, driving operating and psychophysiology records, and their sub-factors were adopted as evaluation factors. on the basis of group multicriteria decision making and fuzzy analytical hierarchy process (AHP) method, the driving fatigue hierarchic fuzzy evaluation model was established, and a simplified scale method was adopted to generate the judgment matrices meeting the consistency checking firstly. the professional drivers’ opinions were aggregated to form triangle fuzzy numbers with fuzzy Delphi method. Finally different influences on driving fatigue were ranked with total utility values of fuzzy numbers and the optimal alternative could be selected. An example was given, under this approach, show that the decision making process was a systematic and practical method for evaluation of the driver selection.