Evaluation of Traffic Safety at Intersections in City Based on Fuzzy Clustering

Intersection is an important node of Urban Road Network and is also the traffic accident-prone location,so the safety assessment of which is of great significance.The traffic conflict technique is a new evaluating method based on non–accident statistics in traffic safety field,by introducing the ratio of traffic conflict and mixed passenger car unit(TC/MPCU) in typical periods as an safety evaluation factor,combined with the mixed fuzzy clustering method,the safety evaluating model was established for eight intersections in Fuzhou.The result is consonant with the practice and it has practical significance.