Abstract: Route choice is a practical problem that cannot be avoided in daily life. Since pedestrians still need to identify if the real landmark is the same landmark in route instructions under the assistant of pedestrian navigation system, a model of pedestrian road network was established. A pedestrian route choice model was proposed by introducing the subjective judgment of delay time and distance into Prospect Theory (PT). The simulation experiment is performed, in this study, on partial region of China University of Geosciences (Wuhan), the results show that the subjective judgment delay time in the same Origin-Destination (OD) pair calculated by the proposed pedestrian route choice model is 0.6 s less than the shortest subjective judgment delay time, and the lengths calculated by it are longer than the shortest routes, however they are all less than 16 m. The experiment results show that the proposed model gives a more realistic route, which meets the actual needs of pedestrians travel.

Key words: landmark, pedestrian road network, subjective judgment delay, Prospect Theory (PT), pedestrian route choice

摘要： 路径选择是人们日常生活中频繁遭遇的现实问题。针对在行人导航系统的辅助下,行人仍然需要通过主观判断识别路径指示信息中的地标和真实地标是否匹配的问题,建立了顾及主观判断延误的行人道路网络模型。通过将主观判断延误时间和路径行程距离引入前景理论中,发展了一种基于前景理论的行人路径选择模型。以中国地质大学(武汉)部分区域为实验对象进行了仿真实验,结果表明所提出的行人路径选择模型给出的最优路径的主观判断延误时间均不超过相同起止点中的最短主观判断延误时间的0.6 s,虽然其给出的行程距离均比最短路径更长,但均不超过16 m。实验结果表明,所提模型符合行人的实际出行需求。

关键词: 地标, 行人道路网络, 主观判断延误, 前景理论, 行人路径选择