由于定位-车辆路线问题是组合优化问题中一个典型的NP难题，大规模时难以精确求解。
It is difficult to solve in large scale because the LRP is a typical NP-hard problem in combinatorial optimization.
将典型的车辆路线问题扩展为综合考虑了客户具有软时间窗约束和中央仓库拥有多种类型配送车辆的情况。
The typical vehicle routing problem is expanded to the situation that customers have the restriction of soft time Windows and a depot has various kinds of vehicles to distribute.
本文基于现实的问题提出了一类特殊的车辆路线问题（VRP）—任意客户需求量的车辆路线问题（VRPFD）。
In this paper, we presented a kind of special vehicle routing problem(VRP) based on reality- vehicle routing problem with facultative demands(VRPFD).
本文运用系统分析的思想和方法，研究了物流系统中的设施定位-配给问题和车辆路线问题的组合优化问题——定位-车辆路线问题。
Using the thought and method of system analysis, the paper researches the location-routing problem (LRP), which integrates the location-allocation problem and the vehicle routing problem.
据悉，武大将针对该问题采取一系列措施，要求车辆凭证入校，并绘制樱花交通路线图。
Wuhan University will bring in a series of measures, such as licensing cars that wish to enter the campus and handing out "cherry tree route maps", to help the cherry blossom season pass smoothly.
在分析城市生活垃圾收运系统特征的基础上，根据实际存在的城市生活垃圾收运方式，提出了垃圾收运车辆路线优化问题。
On the basis of the analysis of the characteristic of refuse collection system, it presents refuse collection vehicle routing problem according to the existing collection.
动态车辆路线和调度所涉及的问题范围较广，向决策者揭示关于该问题的信息范围所在也就确定了问题的解决方法。
Dynamic vehicle routing and dispatching refers to a wide range of problem where information on the problem is revealed to the decision maker concurrently with the determination of the solution.
论文第三章针对车辆导航的路线优化问题，研究了相应的路网表达方法解决方案。
In chapter 3, the solution to the representation of road network aiming at the route planning of vehicle navigation is given.
在实际生活中，带时间窗的回程取货车辆路径问题在物流配送路线中广泛存在，例如零售业、快件与货运和逆向物流等，是物流管理学科的前沿热点问题之一。
In reality, VRPBTW is applied in a wide range of logistics and distribution, like retail, express & freight and reverse logistics, and it is one of the cutting-edge issues in the field of logistics.
随着物流环境的复杂化，物流区域的扩大化，设施定位问题和运输车辆路线安排问题之间的相互影响也越来越大。
With the complicated logistics environment and enlargement of logistics area, the interaction between location allocation problems and vehicle routing problems grow larger.
在分析车辆路径问题(VRP)现有启发式算法的基础上，建立了考虑路线安排的物流配送方案模型，并提出了求解该问题的一种改进遗传算法(IGA)。
Based on the analysis of the existing heuristic algorithm for the vehicle routing problem (VRP), a distribution model relevant to route arrangement was established.
多车辆集散货物路线问题是客户可以同时取货和发货，而且客户发货量在路线安排前是不确定的。
This paper studies the multiple vehicle routing problem integrated terminal cargo. In this problem, there is delivery or pick -up and uncertain features in the demands of the clients.
多车辆集散货物路线问题是客户可以同时取货和发货，而且客户发货量在路线安排前是不确定的。
This paper studies the multiple vehicle routing problem integrated terminal cargo. In this problem, there is delivery or pick -up and uncertain features in the demands of the clients.
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