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A portfolio approach for optimal fleet replacement toward sustainable urban freight transportation

机译：最优的车队替换以实现可持续城市货运的组合方法

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摘要

Recently, the use of more sustainable forms of transportation such as electric vehicles (EVs) for delivering goods and parcels to customers in urban areas has received more attention from urban planners and private stakeholders. To provide some insights toward the use of EVs, this work develops an optimization framework using portfolio theory, which takes into account the cost and the risks associated with some input parameter uncertainties, for determining an optimal combination of EVs with internal combustion engine vehicles (ICEVs) in urban freight transportation (UFT) over some planning time period. This model can assist an urban freight operator to choose the best investment strategy for introducing new vehicles into its fleet while gaining economic benefits and having positive impacts on the urban environment. When taking into account the risks that are involved, the numerical results show that EVs have the potential to compete with ICEVs in UFT. (C) 2016 Elsevier Ltd. All rights reserved.
机译：最近，使用更可持续的运输方式，例如电动汽车（EV）向城市地区的客户交付货物和包裹，已经受到城市规划者和私人利益相关者的更多关注。为了提供有关电动汽车使用的一些见解，这项工作使用投资组合理论开发了一个优化框架，该框架考虑了成本和与某些输入参数不确定性相关的风险，以确定电动汽车与内燃机车辆（ICEV）的最佳组合）在某些计划时间内进行城市货运（UFT）。该模型可以帮助城市货运运营商选择最佳投资策略，以将新车辆引入其车队，同时获得经济利益并对城市环境产生积极影响。考虑到所涉及的风险，数值结果表明，电动汽车具有在UFT中与ICEV竞争的潜力。 （C）2016 Elsevier Ltd.保留所有权利。

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