Evaluation of Traffic Conflict Based on Gray Theory at Intersection

The traffic conflict technique is new evaluating method based on no-accident statistics in traffic safety field.It evaluates rapidly and quantitatively traffic safety situation with multi-stylebook which is different from traditional accident statistical evalution.The paper proposes an evaluating method of traffic conflict based on gray cluster theory by means of regarding TC/MPCU as index and designs computing program with Visual Basic,which provides a new evaluation method for safety of intersection.On the other hand,methods of safety improvement based on traffic conflict technique are introduced at intersection in order to reach on objective of safety evaluation.