西安北二环（西段）道路工程沥青面层机械化施工

简要介绍了西安市北二环道路工程沥青面层的材料规格和质量要求，并逐一叙述了机械化施工中沥青混合料施工温度的控制及拌制、运输、摊铺和碾压工艺。     

铁路危险货物运输项目规范化运作模式探析

在对新《铁路危险货物运输管理规则》及相关规范分析的基础上,叙述了实行规范化运作的意义,总结了常见铁路危险货物运输项目的种类,从专用线选址、设计及建设,专用线及接轨站运输组织及技术条件、事故应急预案及施救信息网络等方面阐述了铁路危险货物运输规范化运作的内容。     

浅谈城市规划中的基础设施规划

基础设施是实现城市化的必要条件,是城市发展的载体,更是实现生态城市的支持系统。该文对基础设施含义作了解释,分析基础设施规划中存在的一些问题,最后就基础设施的规划提出了几点建议。     

道路运输稽查工作的新方式

面对道路运输工作面临的主要问题,采取措施实行道路运输案件调查制是道路运输稽查工作的一种新方式。     

Do motor-vehicle users in the US pay their way?

Governments in the US spend over a hundred billion dollars per year to build and maintain roads and provide a variety of services for motor-vehicle users. To pay for these infrastructure and services governments collect revenue from a variety of taxes and fees. The basic objective of this paper is to compare these government expenditures with the corresponding user tax and fee payments in the US. At the outset I argue that the such comparisons tell us something about the equity but not necessarily the economic efficiency of highway financing. I then present four different ways one might tally up government expenditures and user payments, depending on the extent to which one wishes to count “indirect” expenditures (e.g., on prosecuting car thieves) and non-targeted general-tax payments (e.g., severance taxes on oil). I make a comprehensive analysis of all possible expenditures and payments, and then compare them according to three of the four ways of counting expenditures and payments. The analysis indicates that in the US current tax and fee payments to the government by motor-vehicle users fall short of government expenditures related to motor-vehicle use by approximately 20–70 cents per gallon of all motor fuel. (Note that in this accounting we include only government expenditures; we do not include any “external” costs of motor-vehicle use.) The extent to which one counts indirect government expenditures related to motor-vehicle use is a key factor in the comparison.     

多目标规划在铁路零担货运中转装车问题中的应用

结合顾客满意度与中转货物运到期限两者间的关系,将以货物的运到期限为要素的函数作为首要目标,将车辆的静载重利用率及车辆的轻重搭配合理程度作为次要目标,以车辆标记载重限制、车辆载货容积限制及车辆满载限制为约束条件,建立研究铁路零担货物运输中转装车问题的多目标规划模型。利用主要目标法,把首要目标作为主要目标、次要目标转化为约束条件,从而将多目标规划模型转化为单目标规划模型。应用模拟退火算法,设计算法的实现步骤,求得单目标规划模型的有效解。以同去向30件待中转货物装入2辆车为例,运用设计的模拟退火算法步骤,计算得到装车方案。计算结果表明:得到的装车方案满足车辆的载重约束与载货容积约束,提高了车辆静载重利用率,并体现客户需求至上的铁路货运服务理念。     

ITS共用信息平台的研究

针对目前智能交通各子系统独立应用,存在大量信息孤岛,信息无法充分利用的现状,分析了共用信息平台在数据交换、数据共享以及数据融合挖掘等方面的功能,提出了一种共用信息平台的体系结构,并着重分析了平台各模块的功能。该共用信息平台在实现智能交通系统各子系统的集成上具有良好的灵活性和可扩展性。     

我国大规模城市交通发展方略研究

从国外大城市的交通发展经验及实际数据入手,分析了我国大规模城市交通发展所面临的主要问题,提出了在我国大规模城市建立快速、高效和可持续发展的现代化城市交通系统的相关对策。     

Use of ecological footprinting to explore alternative transport policy scenarios in an Irish city-region

The objective of this paper is to compare the ecological footprint for travel-commuting patterns for the residents of an Irish city-region, that is Limerick city-region, in 1996 and 2002. Scenario building, based on ecological footprint analysis, is used to estimate the impact of different policy choices for 2010. The optimal policy mix for sustainable travel is proposed and consists of a mix of reduced demand through travel demand measures, better spatial planning and technological improvements in fuel economy.     

"交通引导发展"模式应用探讨

交通引导发展(TOD)理论源于美国,是一种倡导"公共交通与土地利用整合"的土地发展模式。目前,国内外多数TOD研究和实践都基于相对微观的社区层面。而将TOD理论应用于全市域层面,以此优化城市轨道交通网络和空间结构,引导沿线土地开发将更具意义。对TOD的内涵及实现TOD理论所面临的问题进行了分析,并针对实践中出现的一些概念误区,引用国外成功TOD的实践经历,探讨适合我国发展的TOD模式,并设计出基于TOD模式的车站及周边土地规划策略,在实施TOD过程中,应制定灵活变通的策略及行动方案,集合政府部门、交通运营机构、开发商及科研部门共同完成。尽快制定沿线土地供应计划是实施空间发展战略的重要保障。推行TOD理念必将改变现有土地政策及管理体制。