通行车辆的激增对扬子江隧道交通安全的影响研究

Research on the Impact of Traffic Surge on the Traffic Safety of the Yangtze River Tunnel

依据隧道交通事故发生的不确定性、模糊性,运用基于模糊数学的模糊综合评价法对隧道交通安全水平进行评估。最后通过比较车流量增加前后的交通安全评估结果得到通行车辆激增对隧道交通安全的影响。结果表明:扬子江隧道内的通行车辆激增,隧道的交通安全等级由良好降为中等,隧道的交通事故风险增加。隧道管理部门可以采取分流、车辆分类管理等手段,预防交通事故的发生。

According to the uncertain and fuzzy characteristics of the tunnel traffic accident, the fuzzy comprehensive evaluation method based on the fuzzy mathematics is applied to evaluate the traffic safety of the tunnel. Consequently the impact of the surge of traffic vehicles on the safety of tunnel operation can he concluded by comparing the traffic safety evaluation results under the condition of smooth flow and congestion. The results show that the safety level of the tunnel is reduced to a moderate level from a good level. As a result, the risk of traffic accidents increases after the surge of the traffic vehicles in the Yangtze River Tunnel. The means of traffic diversion and vehicle classification management can be taken by Tunnel management department to prevent the occurrence of traffic accidents.