关键词: 交通工程, 空驶率, 打车软件, 乘客等待时间, 搜索行为

Abstract: This paper aims to find out the confirming method of urban taxi vacancy ratio in the taxi-hailing apps context. Passengers who take taxis are divided into hailing passengers and passengers using taxi-hailing apps. According to the characteristic of two kinds of passengers, the calculation methods of passengers’ waiting time are proposed. Based on the equivalence between passengers’ waiting time and vacancy driving time, a newquantitative model between the usage rate of taxi-hailing apps and vacancyratio model is developed. This model can describe the relationship between the usage rate of taxi-hailing apps and vacancy ratio in the case of fixed parameters, such as network characteristics and taxi operation parameters. This paper testifies the validity and convenience of the proposed methods by an example, which can reflect reality of operation efficiency and offer some beneficial guidance and theoretic basis to the planning and management of urban taxi-hailing apps.

Key words: traffic engineering, vacancy ratio, taxi-hailing apps, passenger waiting time, searching behavior