中文摘要：

体力消耗与行人流率是影响人行立体过街设施服务水平的最主要影响因素.针对行人上下楼梯时所付出的体力消耗,采用耗氧量模型计算得到行人耗氧量,再依据耗氧量的等量关系,将体力消耗等效换算为步行距离;利用二阶聚类方法,结合实际调查,确定行人各感受等级对应的等效步行距离与行人流率阈值,进而以此阈值为准绳,结合服务水平聚合模型,实现对人行立体过街设施的服务水平评价.通过研究得出,等距离的上下楼梯等效步行距离与实际绕行距离对行人感受等效,等效步行距离能够较好反映行人对体力消耗真实感受水平;使用人行天桥与地下通道过街的体力消耗对行人的感受,分别等效于步行50m与35m.

英文摘要：

Physical consumption and pedestrian flow rate are the leading influence factors in reflecting the level of service of pedestrian interchange crossing facilities.Aiming at the physical consumption of walking up and down the stairs,this paper obtains pedestrian oxygen consumption with the oxygen consumption model.It converts physical consumption into walking distance equivalently according to the equivalent relationship between the oxygen consumption.The equivalent walking distance and pedestrian flow rate threshold corresponded to each pedestrian feeling level is confirmed by two-step-cluster method combined with actual survey.Then,based on the threshold and combined with the level of service polymerization model,the evaluation on the level of service of pedestrian interchange crossing facilities can be accomplished.As the result of this study,the following conclusions are drawn： the equivalent walking distance of the same distance up and down stairs and the actual detouring distance can make the same perception on pedestrian.The equivalent walking distance can well reflect the actual feeling of pedestrian physical consumption.The pedestrian perception from using foot-bridge and subway are respectively equivalent to 50 m and 35 m.