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Urban travel time evaluation: an economic approach

机译：城市旅行时间评估：一种经济方法

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Among factors affecting the choice of transport mode in urban mobility, a key role is played by "non-monetary" components. Travel time has become a crucial variable to be computed in order to correctly evaluate total (monetary + non monetary) travel costs compared with the economic utility of transport.rnStarting from some milestones of microeconomic literature on the broader issue of time value, the paper deals with the specific matter of an economic approach to travel time perception, estimation and rating in an urban transport context.rnThis assessment process, which crucially affects modal split, is influenced by unavoidable subjectivity due to socio-economic characteristics of travelers (age, average income, kind of employment, behavioral preferences, working vs. non-working time trade off) and to different travel purposes (work, leisure, shopping). An empirical survey based on sample interviews has been carried out, in order to estimate (ⅰ) the average time for urban moving (stratified for passengers attributes) and (ⅱ) the perceived value of travel time for any different class in order to evaluate individual willingness to pay for reducing travel time.rnData collection and analysis allow to compute a simplified "generalized" cost for urban travel, where time value appears to be by far the most important element. As a result, some policy items and suggestions for improving urban transportation planning and management are finally outlined.
机译：在影响城市交通运输方式选择的因素中，“非货币”成分起着关键作用。与正确的运输经济效益相比，旅行时间已成为计算总价值（货币+非货币）旅行成本时必须计算的关键变量。rn从微观经济学文献中有关更广泛的时间价值问题的一些里程碑出发，本文涉及尤其是在城市交通环境中采用经济方法对旅行时间进行感知，估计和定级的方法。rn该评估过程对交通方式的分裂至关重要，由于旅行者的社会经济特征（年龄，平均收入）而受到不可避免的主观性的影响，就业类型，行为偏好，工作时间与非工作时间之间的权衡）以及不同的出差目的（工作，休闲，购物）。为了估计（ⅰ）城市出行的平均时间（针对乘客属性进行了分层）和（ⅱ）任何不同类别的出行时间的感知价值，已经进行了基于样本访谈的实证调查，以便评估个人愿意花钱减少旅行时间。数据收集和分析可以计算出简化的城市旅行“通用”成本，而时间价值似乎是迄今为止最重要的因素。因此，最后概述了一些有关改善城市交通规划和管理的政策项目和建议。

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