分享自行车的分发车辆路线问题,考虑到碳排放,分发分发.
Guanghui Chen1, Huicong Li2, Bing Su1
1School of Economics and Management, Xi'an Technological University, Xi'an, China.
PloS one
|October 17, 2025
概括
优化共享自行车的分配需要平衡交付成本和环境影响. 本研究介绍了一种模型和算法,通过分割需求和考虑车辆负载限制来最大限度地减少碳排放和运输费用.
科学领域:
- 运营研究 运营研究
- 环境科学 环境科学
- 运输 运输 物流 后勤
背景情况:
- 共享自行车的分发与传统的物流不同,原因是特定站点 (例如,交通枢纽,商业区) 的高需求.
- 满足高峰需求往往需要批量分发,从分发中心分发到需求站.
- 配送车辆有助于碳排放,需要在路线选择中考虑环境问题.
研究的目的:
- 建立一个共享自行车分销车辆路线选择模型,将碳排放纳入其中.
- 为了最大限度地降低碳排放和运输业务的综合成本.
- 为了解决车站需求分割和车辆负载限制的问题.
主要方法:
- 开发了分配车辆路线选择的数学模型,优化了总成本 (排放+交付).
- 设计了一个基因算法 (GA) 作为一个近似算法来解决已建立的模型.
- 分析了GA的时间复杂度和近似比率边界.
主要成果:
- 拟议的模型有效地将碳排放成本纳入共享自行车配送路线选择中.
- 在经验研究中,GA表现良好,近似比为3.52.
- 该模型和算法使用来自中国西安的真实世界共享自行车站数据进行了验证.
结论:
- 该研究为优化共享自行车物流提供了一个理论框架,重点关注环境可持续性.
- 决策者可以利用该模型和算法来提高共享自行车交付运营的效率并减少共享自行车交付运营的碳足迹.
- 需求分割和车辆负载限制是有效共享自行车分配计划的关键因素.
相关概念视频
Distributed Loads: Problem Solving
1.1K
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
1.1K
Short-distance Transport of Resources
17.4K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
17.4K
Rolling Resistance: Problem Solving
774
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
774
Distributed Loads
942
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
942
Transformers in Distribution System
494
Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
494
Otto and Diesel Cycle
3.5K
An Otto engine is a four-stroke engine that uses a mixture of gasoline and air as the working fuel. The fuel is injected into the cylinder, and the piston is moved completely down so that the cylinder is at maximum volume. By moving the piston up, adiabatic compression takes place. The spark plug ignites the gasoline-air mixture, and the burning fuel adds heat to the system at a constant volume. The heated mixture expands adiabatically and gets further cooled by exhausting heat, and this cyclic...
3.5K


