DCY100型动力平板运输车

动力平板板运输车是造船厂钢结构船体分段在工序之间转运的主要设备，本文介绍了该车结构特点、主要技术参数、控制方式及应用范围。     

浅析交通行政执法中语言的运用

在交通行政执法工作中,交通行政执法人员与当事人之间的第一接触就是语言的接触。因此,在交通行政执法过程中,能否正确、规范地运用语言这一交流媒介,不仅会直接影响到交通行政执法工作效果,而且还可以反映出交通行政执法人员的基本素质和知识水平。因此正确、规范地使用语言这一交流工具是顺利开展交通行政执法工作、提高交通行政执法效能所必须面对和掌握的一项基本功     

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。     

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.     

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。     

Identifying peer states for transportation system evaluation &; policy analyses

The majority of comparisons between state transportation systems do not control for characteristics that may vary greatly between states (e.g., vehicle miles traveled). A shortcoming of such analyses is that a state’s individual characteristics can be highly influential in determining how transportation policy is set and funds are spent. The purpose of this paper is to extend previous efforts to create groups of similar peer states by developing a new methodological framework that incorporates demographic, temporal, and locational variability into the peer group delineations. We collected historical data for 42 variables on transportation infrastructure, population, economy, growth, topography and weather. To examine trends before and after the passage of ISTEA we gathered data over two time periods: 1985 through 1990 and 1995 through 2000. Using principal components analysis (PCA) we reduced variables into seven components, and then statistically clustered states into peer groups for each time period based on the components and the remaining variables. We identified a range of cluster solutions and demonstrate how cluster statistics help to describe the contextual basis behind the peer grouping. The results of this study are to provide government agencies, researchers and the public with a systematic methodological framework for identifying peer states that reflect similar attributes contributing to the development and maintenance of state transportation systems.

基于公交枢纽导向的新城区土地利用模式

本文基于新城区的特点,将公交枢纽导向发展理念引入新城区土地利用模式中,提出了新城区交通与土地协调发展的规划思路,探讨了枢纽区域宏观布局、微观选址的规划方法。并对枢纽区域的土地利用模式提出了新的思路。研究结果表明：基于公交枢纽导向发展模式的规划方法是新城区土地利用规划的一种理想模式。     

道路运输企业安全投资决策研究

重视并合理地进行安全投资,是提高道路运输企业安全生产水平和经济效益的重要手段。论文结合道路运输企业实际情况,在总结安全投资的定义的基础上指出：安全投资具有间接性、隐蔽性和浅在性等特点,提出了安全投资决策的基本流程,最后建立了安全资金总投入与安全资金优化分配的数学模型。实例验证表明模型是正确和可行的。     

浅析LNG在商用车中的应用

论文对LNG在商用车中的应用进行了分析研究,对LNG汽车的市场前景进行简要分析,并从LNG燃料的优点、LNG汽车供气系统技术方案、动力性研究以及其经济性四个方面进行了具体的阐述。研究表明LNG作为后起之秀,具有无与伦比的优势,发展前景看好。