关键词: 城市交通, 聚合模型, 等效换算, 体力消耗, 二阶聚类, 服务水平

Abstract:

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.

Key words: urban traffic, aggregation model, equivalent conversion, physical consumption, twostepcluster, level of service