石家庄市公交专用道现状及发展前景

石家庄市中山路公交专用道试点工程，是石家庄市委、市政府根据优先发展城市公共交通和城市交通管理规划的总体目标，以解决城市交通拥堵、解决市民出行乘车问题为重点，通过对国内外公交专用道典范城市进行实地考察，将其列为石家庄市世行贷款交通项目重点工程。     

高速公路建设项目前期工作探讨

本文阐述了高速公路建设项目前期工作的主要内容,对工作重点及常见问题进行探讨,同时结合某高速公路项目的工作实践,分析了可行性研究工作的关键环节,并提出项目前期工作的建议,供同行借鉴。     

浅谈新形势下“低运量、高投资”铁路项目前期研究

本文先分析了铁路建设面临的新形势,再以近期批复的"祥云至临沧铁路项目"为例,从符合铁路建设形势、满足各方需求、利于项目推进的角度,对"低运量、高投资"类的铁路项目前期研究要点进行了梳理并提出应对措施,为类似的铁路项目前期研究提供参考。     

与轨道并行路的储备研究

开展项目前期储备工作研究,建立道路项目储备库,是配合实施交通基础设施审批改革和统筹前期推进工作的重要举措。涉轨类道路属于项目储备库的子库,与轨道并行道路是涉轨类道路中的最基本部分。本文针对与轨道并行的道路工程,论述了项目储备研究的必要性,分析了前期推进过程中存在的主要问题,提出了储备研究的基本思路。并以北京针织路项目为例进行了具体分析。     

高速公路建设项目可行性研究报批工作管理探讨

高速公路建设工程前期工作是高速公路项目建设过程起首要关键作用的一个阶段,而可行性研究报批阶段是项目前期工作的重要内容之一。文章依据广西地区高速公路项目可行性研究报批工作管理,对其工作程序进行梳理,对相关重点前置环节的管理要点和存在的问题进行探讨,为后续高速公路可行性研究报批工作管理提供借鉴。     

高速公路工程造价控制的有效举措研究

从项目前期管理、施工阶段控制以及供应链与采购管理等方面,深入研究造价控制的关键要素。在项目前期,合理的可行性研究和初步设计为造价控制打下基础。施工阶段的合同管理、施工进度控制和质量保证相互协同,实现了工程高效推进。与供应商的良好合作在供应链与采购管理中发挥重要作用,降低了采购成本。高速公路工程造价控制对项目经济效益和国家基础设施建设的可持续发展至关重要。     

项目纵向到底、横向到边之管理理念探讨

文章结合嘉陵江特大桥工程实例,针对该项目前期策划内容,介绍了该项目执行纵向到底、横向到边之管理理念所遇到的各种制约因素及所采取的管理措施。     

业界动态——交通运输大事记

▲投资18．2亿元的厦门机场快速路一期工程动工，这是厦门首条封闭型的城市高速公路。▲深圳地铁3号线建设正式启动。▲世行执行董事会批准向内蒙古交通和贸易走廊项目提供1亿美元贷款，以帮助内蒙古自治区改善交通基础设施和物流。▲深圳首个具备“车港”功能的综合交通枢纽——福田交通综合枢纽换乘中心动工。▲目前世界上规模最大、水深最深、设施最先进的码头——青岛港前湾三期集装箱码头全线投产。     

工程建设项目前期管理工作中的问题及措施浅析

工程建设项目的前期管理在整个工程项目的全周期都起着至关重要的作用,其对整个项目的进度、质量、环保及投资控制等均有直接影响。因此,做好工程建设项目的前期管理工作,是整个工程建设项目管理的重要一环。本文结合实际案例,讲解了项目建设前期工作中存在的问题及注意事项,以期为项目前期管理工作的改进提供参考。     

关于机场建设项目国民经济评价的探讨

<正> 近2年,在机场项目前期论证工作中出现两种现象,一是只要项目的财务效益不理想就否定该项目,不重视机场项目的国民经济评价;另一种是重视、强调国民经济评价,但对评价的计算范围、方法不太清楚,造成计算分析结果的不真实,难以为项目的抉择提供正确的依据。本文根据机场建设的特点,在总结近些年机场建设项目评价经验的基础上,对国民经济评价进行研究,旨在为有关决策部门提供项目抉择的依据。     

公路项目经济性与可持续性的相关探讨

文章针对我国目前公路建设项目前期论证中经济性分析存在的不足,将公路项目按照其不同的经济属性进行了较细致的划分,并在此基础上对公路项目的经济性与可持续性进行了详细论述,得出了项目的可持续性分析应成为公路建设项目经济性分析前提的结论。     

A Quantitative Analysis of the Performance of Transportation Projects in Developing Countries

Abstract

This paper presents the results of a detailed quantitative analysis of performance metrics of a sample consisting of 89 transportation projects sponsored by the World Bank. The sample and a subset consisting of 65 projects were evaluated using the performance metrics of project cost, schedule and scope. The effect of project size (dollar value) and project duration on performance metrics was investigated. Also, the achievement of project goals and potential improvement in planning and estimating over time (the learning effect) was studied. It was found that, in general, in transportation projects sponsored by the World Bank, costs are overestimated and schedules are optimistic. The outcome with respect to cost seems counter‐intuitive because previous work by other researchers had shown a systematic underestimation of project costs. There is significant evidence that there are no efficient controls in place to predict or prevent schedule delays. The study also showed that during the past 15 years, no improvement (learning effect) was evident in project cost and duration estimation as the level of accuracy has not changed significantly. Further, it is observed that project duration did not affect the performance with respect to cost and delay.     

Quality of institutions and private participation in transport infrastructure investment: Evidence from developing countries

In recent decades, owing to a series of public debt crises and constraints on government expenditure, infrastructure investment has dropped significantly in both developed and developing countries. To counterbalance this trend, Public–Private Partnerships (PPPs) schemes have been increasingly adopted. In this paper, we explore the determinants of the degree of private participation in transport infrastructure projects in a large sample of developing countries. By using a large sample of transport projects included in the World Bank Private Participation in Infrastructure Projects database, we document that greater participation by private parties in PPP contracts is associated with better institutions in terms of lower corruption, civil freedom, and a better regulatory framework.     

三维相对坐标测量法在大跨径拱桥中的应用

太平湖特大桥施工采用三维相对坐标测量法及提篮式拱桥计算程序,使用该方法能够准确、直观、快速地进行拱肋动态实时放样定位计算。文章结合工程实例,介绍了太平湖特大桥拱肋定位放样程序的编制和定位实际操作过程,为类似工程测量放样提供参考。     

Environmental considerations of land transport in developing countries (part 2)

Developing countries have unique problems and needs which must be considered when attempting to identify and evaluate the environmental impacts of land transport. This paper presents a review of the relevant literature that can be used to identify, evaluate and mitigate environmental impacts of land transport facilities (development and operation) in developing countries. After examining the relevant characteristics of land transport development in such countries, the paper discusses the environmental effects. Controls and countermeasures associated with each category of impacts are also reviewed under the broad categories of air, noise and water pollution as well as land use changes and social and ecological impacts. Issues concerning environmental impact assessment/analysis process and transport of hazardous materials are then addressed. The procedures established by the World Bank for the environmental assessment of Bank‐financed projects are mentioned. The paper concludes with a brief discussion of the responsibilities of the developing countries in meeting the growing challenge of environmental degradation.     

太平湖大桥铜陵岸边坡破坏机理分析与防护

文章在分析太平湖大桥铜陵岸边坡工程地质特征、稳定性影响因素及边坡变形破坏机理的基础上,依据相关工程设计规范和原则分析计算出该边坡岩体结构面检算指标、地震与正常状态下的滑坡推力以及各断面预应力锚索锚固长度。介绍了铜陵岸边坡的预应力锚索、钢筋锚杆、钢筋混凝土框架、地表与仰斜排水等工程设计及防护结构的基本参数。     

基于多层次体系的交通科技项目模糊综合评价

交通科技项目具有明显的多因素性和不确定性,导致对其进行的评价也具有多目标性和模糊性。文章根据交通科技项目的特点提出基于多层次体系的模糊综合评价方法,介绍以多层次模糊综合评价模型为框架评价交通科技项目的步骤,为西部交通科技项目对社会经济的影响评价提供依据。     

中、小跨径桥梁的梁板安装及应用

文章针对路网工程的现状,结合工程实例,提出中、小跨径桥梁的梁板安装的施工方法,并说明其在工程上的应用。     

Preventing death and injury on the world's roads

The problem of deaths and injury as a result of road crashes is now acknowledged to be a global phenomenon with authorities in virtually all countries concerned about the growth in the number of people killed and seriously injured on their roads. The World Health Organization has declared that its annual World Health Day in 2004 will have the theme 'Safe Roads', and several organizations, including the World Bank and the Global Road Safety Partnership, are supporting this initiative to raise the profile of road safety in the public and political minds.     

路桥项目施工材料成本控制探讨

文章通过总结临湘-长沙高速公路某标项目经理部在材料计划、采购、存贮、领用等各个环节进行控制的方法,提出了降低路桥项目材料成本、提高路桥项目效益的控制措施。