Integrated inventory-transportation model by synchronizing delivery and production cycles

This paper develops an integrated single-vendor multi-buyer inventory-transportation synchronized supply chain model. In this paper, the decisions of truck assignment and routing are also considered and as a result, a series of vehicle routing problems (VRP) are required to be solved. Due to the highly complicated objective function and the NP-hard VRP problems, the problem cannot be solved analytically. Hence, meta-heuristics are proposed. By means of the numerical examples and a case study, the meta-heuristics developed are shown to be very effective in solving such comprehensive supply chain models, and the results so obtained are promising.     

Where are the electric vehicles? A spatial model for vehicle-choice count data

Electric vehicles (EVs) are predicted to increase in market share as auto manufacturers introduce more fuel efficient vehicles to meet stricter fuel economy mandates and fossil fuel costs remain unpredictable. Reflecting spatial autocorrelation while controlling for a variety of demographic and locational (e.g., built environment) attributes, the zone-level spatial count model in this paper offers valuable information for power providers and charging station location decisions. By anticipating over 745,000 personal-vehicle registrations across a sample of 1000 census block groups in the Philadelphia region, a trivariate Poisson-lognormal conditional autoregressive (CAR) model anticipates Prius hybrid EV, other EV, and conventional vehicle ownership levels. Initial results signal higher EV ownership rates in more central zones with higher household incomes, along with significant residual spatial autocorrelation, suggesting that spatially-correlated latent variables and/or peer (neighbor) effects on purchase decisions are present. Such data sets will become more comprehensive and informative as EV market shares rise. This work’s multivariate Poisson-lognormal CAR modeling approach offers a rigorous, behaviorally-defensible framework for spatial patterns in choice behavior.     

物流配送车辆调度优化方法比较研究

目前，对物流配送车辆优化调度问题（VRP）还是一个研究热点．许多学者采用了各种优化方法来解决实际问题。本文综述了物流配送车辆调度问题的各种优化方法．对其发展历程．优缺点、适用性等都作了详细的说明，并对它们作以比较分析，从而找到最适合现实状况的优化方法。     

基于TransCAD的物流配送VRP解决方案

在简要阐述物流配送VRP问题的基础上，介绍了TransCAD中VRP考虑的因素和功能实现，重点分析TransCAD物流配送VRP解决方案，并对车辆路径方案、车辆出行时间方案进行详细分析，最后通过与“点对点”运输方案的对比分析与评价，得出VRP配送是节约型物流最有效的途径。以TransCAD的物流配送VRP解决方案为例，旨在说明建立节约型物流迫切需要采用先进的信息技术，为现代物流规划管理提供最优解决方案。     

AGVS在中国的应用与发展

重点介绍了AGVS在中国工业领域的应用及发展趋势，分析比较了中国在应用AGVS方面与欧洲、美国和日本等发达国家之间的差距，为进一步推动AGVS技术在中国的应用和发展奠定了基础。     

基于连通可靠性的车辆路径问题

物流配送车辆路径问题(VRP)是一个NP-hard问题,很多求解方法仅考虑路网连通无穷大的情况,将其看成平均旅行时间问题,对于突发事件下造成路网拥堵情况下的车辆路径问题很少涉及,对此结合蚁群算法,对突发事件下各路段的连通可靠性进行比较后选择合适路段通过,用以提高路网的通行能力。     

Vehicle flow formulation for two-echelon time-constrained vehicle routing problem

Two-echelon routing problems, including variants such as the two-echelon vehicle routing problem (2E-VRP) and the two-echelon location routing problem (2E-LRP), involve assignment and location decisions. However, the two-echelon time-constrained vehicle routing problem (2E-TVRP) that caters to from-linehaul-to-delivery practices does not involve assignment decisions. This routing problem variant for networks with two echelons has not yet attracted enough research interest. Localized or long-distance services suffer from the lack of the assignment decisions between satellites and customers. Therefore, the 2E-TVRP, rather than using assignment decisions, adopts time constraints to decide the routes on each of the two interacting echelons: large-capacity vehicles transport cargoes among satellites on the first echelon, and small-capacity vehicles deliver cargoes from satellites to customers on the second echelon. This study introduces a mixed integer linear programming model for the 2E-TVRP and proposes a heuristic algorithm that incorporates the savings algorithm followed by a variable neighborhood search phase. Illustrative examples are used to test the mathematical formulation and the heuristic and a case study is used to demonstrate that the heuristic can effectively solve realistic-size instances of the 2E-TVRP.     

司法解释在机动车辆保险合同中的应用性研究

最高人民法院先后发布《道路交通事故损害赔偿案件司法解释》和《保险法司法解释（二）》两个司法解释,完善了保险合同的法律规则和经营规则,规范了保险合同涉法涉诉中的统一性和裁判性,增强了保险经营实务实践中的针对性和操作性.本文基于与司法解释关联度和影响度最高的机动车辆保险合同,开展保险合同涉法涉诉中“如实告知、明确说明、免责条款”等争议焦点问题及保险经营实务实践中“保险产品、承保规程、理赔规程”等业务管理问题的应用性研究,评论司法解释的优劣,反思司法解释过度保护问题.     

美国四轮全地形车标准新旧版本差异分析与研究

全地形车(All Terrain Vehicle,简称ATV)是我国近年来发展迅猛的新兴车型,产品主要用于出口,而美国是我国全地形车主要出口对象国之一。本文通过对美国四轮ATV强制性安全标准ANSI/SVIA-1新旧版本的分析研究,阐述了我国ATV产品在设计、配置和性能等方面面临的技术壁垒,这对我国ATV产品出口美国具有重要指导意义。     

闭环物流系统的成本因素分析

根据定位-配给。运输车辆安排，定位运输，定位-路径-库存等问题概念给出了此类问题的国内外研究现状，并结合闭环物流系统特征，给出闭环物流系统中关于选址-路径-库存问题的研究思路及成本因素分析。