道路生态学在植物及动物方面的研究动态综述

基于道路建设给生态环境带来的不利影响,道路生态学成为了一门新兴学科。文章回顾了道路生态学的研究历程,详细论述了道路生态学在植物和动物方面最新的研究动态。     

论公路职工教育与公路文化建设

文章针对公路行业职工教育现状,分析公路职工教育存在的问题及原因,从提高职工综合素质、加强职工＂三种文化＂建设等方面阐述了加强公路职工教育与公路文化建设的对策。     

沥青混合料抗剪切验算方法

文章借鉴城市道路的抗剪验算方法和步骤,提出了适用于沥青混合料的抗剪验算方法,并采用沥青路面应力计算BISAR程序与三轴试验进行实例分析,验算了该方法的可行性。     

浅谈筑路机械设备管理

文章通过分析筑路机械设备管理的背景和意义,针对目前筑路机械设备管理存在的问题,提出了相关对策,为公路施工企业提高筑路机械设备管理水平提供借鉴。     

广西南梧公路苍梧县林水段通行能力研究

文章对南梧公路苍梧县林水段通行能力和服务水平进行了研究和比较,介绍了通行能力计算公式和参数选取过程,论证了该路段的通行能力可以满足2020年前的交通需求,并提出了提高现有公路通行能力的方法和建议。     

百色-罗村口高速公路百康村滑坡稳定性分析

文章结合百色-罗村口高速公路百康村滑坡区的工程地质概况,分析了百康村滑坡的形成机理,并采用传递系数法对滑坡的稳定性进行了探讨,提出了相应的综合处治方案。     

广西运政管理信息化建设研究

文章结合对运政管理信息化现状的分析,介绍了广西运政管理信息化建设的系统规划及特点,提出了建设的难点问题,并对广西运政管理信息化建设所取得的效益进行了评述。     

成品油税费改革对西部道路客货运输的影响及对策

国家实行成品油税费改革,给西部道路客货运输业的发展带来了机遇和挑战。文章从道路运输管理部门和道路客货运输企业的角度阐述成品油税费改革对行业管理与企业发展的机遇和挑战,并结合实际提出了应对策略与建议。     

Sharing costs in Swedish road ownership associations

Usually transport systems, and roads in particular, are viewed as public goods. However, this is not always the case. In Sweden a large part of the road system is privately owned. Most of these privately owned roads are rural roads used by farmers and summer cottage owners, or used for forest transport. These roads are mainly provided by ownership associations.An important difference between public roads and these privately owned roads is that all investments- and maintenance decisions are made by the users themselves, who also have to pay the costs, whereas the usual case is that the owners/providers of a road-system are different agents than the users. Here the question is not how to charge the roads but how to split the costs of the roads among the users in an efficient and “fair” way.The motivation of this paper is the practical problem of how such an ownership association can divide the costs for the road network among the members in an efficient and “fair” way. The problem is treated from a game theoretical point of view, making use of the Shapley value. This means that the problem is associated with a game - a mathematical representation of the conflict situation. The Shapley value is a very important solution concept for cooperative games, like the game in this case. For games corresponding to this specific type of problems, it is shown that the Shapley value has excellent properties, such as beeing an element of the core, and beeing very easy to compute.     

Foldable container in empty container repositioning in intermodal transportation network of Belt and Road Initiative: strengths and limitations

In 2013, the concept of the ‘Silk Road Economic Belt and the 21st-Century Maritime Silk Road (Belt and Road)’ was initiated by the Chinese government, which involves Asian, European and African continents and their adjacent seas. Logistics plays a core role in such a large framework of economy and trade. In recent years, China, European Union, and Southeast Asia pay much attention to the design and development of the intermodal transportation network towards both economic and environmental efficiency. In this paper, we propose an empty container repositioning model in the intermodal transportation network of Belt and Road (B&R) Initiative by considering both standard and foldable containers. In this model, empty containers are repositioned from the inland of the original area, such as China, to other areas of B&R Initiative related countries and regions, such as European Union and Southeast Asia. We develop a mixed integer linear programming model to determine the optimal repositioning of empty containers via the intermodal transportation network. An Artificial Bee Colony algorithm is developed to solve large size problems in practice and numerical experiments are conducted to show the efficiency of our proposed algorithm. We provide managerial insights regarding the impact on the network performance of foldable containers transportation.