Abstract: The whole urban taxi operation speed in the taxi-hailing apps context was aimed to be found out. The difference characteristics of vacant operation speed and passenger-choosing probability between traditional taxis and taxis with taxi-hailing apps were analyzed. Passengers who took taxis were divided into hailing passengers and passengers using taxi-hailing apps, according to the condition whether the taxi software was used to search passengers. A new equilibrium model was developed based on the equivalence between total operation time and driving mileage of two types of passengers. The corresponding relationships among the usage rate of different taxi-hailing apps, total driving mileage, total operation speed and unloaded ratio in the case of fixed operation time and taking times were obtained by the proposed model. The validity and feasibility of the proposed method was testified by a case study, which was beneficial for the management department to have the operation parameters of the urban taxi system and make a reasonable development plan.

Key words: traffic and transportation engineering, operation speed, taxi-hailing apps, vacant operation speed, searching behavior

摘要： 为计算打车软件对城市出租车总体运营速度的影响，分析了在打车软件背景下出租车在空驶阶段的行驶速度及选择乘客概率的差异特征，以出租车是否使用打车软件搜索乘客为衡量依据将乘客分为两类，最后根据搭载两类乘客的总运营时间及总运营里程守恒关系建立模型。在出租车固定的运营时间及乘次条件下，模型能得出不同打车软件使用率与总运营里程、总体运营速度及空驶率之间的对应关系。通过算例分析表明该模型具有有效性和可行性，有助于管理部门掌握城市出租车系统的运营参数，并制定合理发展规划。

关键词: 交通运输工程, 运营速度, 打车软件, 空驶行驶速度, 搜索行为