全国沿海邮轮港口布局规划方案出炉

<正>日前,交通运输部公布《全国沿海邮轮港口布局规划方案》(简称《规划》),提出2030年前,全国沿海形成以2至3个邮轮母港为引领、始发港为主体、访问港为补充的港口布局,构建能力充分、功能健全、服务优质、安全便捷的邮轮港口体系,打造一批适合我     

新型城镇化背景下的县域农村公路网规划研究——以济南市济阳县农村公路为例

农村公路网是区域路网的重要组成部分,对于实现新型城镇化具有重要意义。笔者从促进县域产业全面发展的角度出发,以济南市济阳县农村公路为例,对农村公路网的规划方法进行研究。在传统节点重要度法基础上提出了基于镇村体系、特色农业布局和生产出行的重要度布局规划方法。在统筹县域交通发展的基础上,提出公路网体系构建方案,并提出基于量化指标的公路网模糊评价方法     

港口经济发展迅猛港口城市竞争合作

十届全国人大四次会议通过的《国民经济和社会发展第十一个五年规划纲要》中,国家将长江三角洲、珠江三角洲、渤海湾、东南沿海、西南沿海和长江“黄金水道”作为港口发展的重点,成为推进我国区域经济快速发展的一项重大战略举措。我国港口经济和港口城市的发展将面临新的机遇。     

宁波港腹地拓展与多式联运体系的建设

宁波深水良港,有着得天独厚的地理优势和港口资源,是我国沿海主枢纽港之一和综合运输体系的重要枢纽。作为集装箱运输干线港,宁波港是长江三角洲及长江沿岸地区工业发展所需能源、原材料及外贸物资运输的主要中转港,是浙江省、宁波市国民经济和对外开放及发展临港工业的重要依托。在国家发改委和交通部编制的《长江三角洲地区港口建设规划》中明确指出:“建设以上海、宁波两港为主,干线港、支线港、喂给港层次清楚、分工合理的集装箱运输体系”,这是对宁波港新的战略定位,宁波港在未来长三角区域发展中将与上海港同为核心。要实现宁波港的发…     

沿海港口发展与码头吞吐能力适应性分析

1、新世纪港口吞吐量快速增长,布局结构不断优化进入新世纪,在经贸高速发展,加入WTO的背景以及高投资率和重化工工业进程的推动下,我国港口吞吐量快速发展,在世界的地位显著提高。到2010年,港口吞吐量仍将保持高速发展,国际地位进一步提高,布局结构得到优化,形成港口发展新框架。表1显示了我国内河和沿海港     

生态系统健康的港口规划生态影响分析方法探讨

文章以海洋港口为例,综合港口建设的主要生态影响,指出目前规划环评生态影响分析方法的不足,探讨了基于区域生态系统健康的生态影响分析方法和思路,为定量评价港口规划实施对区域生态系统健康影响提供依据。     

三峡枢纽港集疏运体系布局研究

为支撑宜昌市打造全国性综合交通枢纽,全面建成长江三峡航运物流中心,对三峡枢纽港的集疏运体系布局进行了研究。剖析三峡枢纽港集疏运体系的发展现状,总结其存在的问题,明确三峡枢纽港集疏运体系的建设要求和建设目标,提出多层级集疏运体系的布局方案,为推动沿江港口集疏运体系建设和高质量发展提供参考。     

公交专用道线网规划方案评价方法

公交专用道线网规划方案评估是一项重要工作。以武汉市主城区公交专用道线网的布局规划方案为例，研究公交专用道线网规划方案评价方法和指标。采用复杂网络理论和动态仿真模型相结合的方法，构建公交专用道线网规划方案评价体系，从复杂网络结构特性角度构建了公交专用道线网评价指标，利用VISSIM对部分路段的公交专用道运行效果进行仿真实验。实验结果表明，设置公交专用道并规划公交专用道线网使公交车行程延误降低了约59%，行程时间减少约44%，平均车速上升，对优先发展公共交通有较好的促进作用，为公交专用道线网规划方案的评价提供理论参考。     

综合客运枢纽规划与建设研究:以宁波为例

综合客运枢纽是推进综合交通运输体系发展的重要着力点,宁波综合客运枢纽发展具备良好基础,但综合客运枢纽建设较为滞后,在规划、建设、运营等方面问题突出。本文在总结综合客运枢纽规划布局模式的基础上,结合宁波城市空间发展格局,提出了宁波综合客运枢纽规划布局模式与具体方案,并以宁波南综合客运枢纽建设为例,对综合客运枢纽建设模式提出了相关建议。     

上海金山港口开发方案及控制性详细规划探讨

上海金山港口规划是集港城一体规划、港口和产业规划,以及港口总体规划和港区控制性详细规划于一体的大型综合类港口规划项目,涉及港口总体规划调整、复杂建港条件研究、新港区规划方案论证、港口发展方向分析、港城发展关系研究、港区控制性详细规划等众多核心内容,以及高桥石化搬迁、中电投扩建等重大项目。本文探讨了上海金山港口规划方案的技术方法和创新思路,为港口总体规划调整和控制性详细规划的编制提供了借鉴。     

Analysis of factors affecting the choice of route of pedestrians

Pedestrians as compared to vehicular traffic enjoy a high degree freedom of movement even in heavily congested areas. Consequently, there are more alternative links available to pedestrians between a given origin‐destination (O‐D) pair. This paper describes a study done by the University of Calgary to evaluate the factors affecting the choice of route on intra‐CBD trips or trips within the Central Business District (CBD).

An origin destination survey conducted in downtown Calgary, Alberta enabled the identification of the most significant factors influencing the choice. These factors were analyzed in relation to the physical characteristics of the location, personal characteristics of the trip maker and the type of the trip.

It appears that most people chose the shortest link and factors such as the level of congestion, safety or visual attractions were only secondary. This suggests that the length should be made a major consideration when planning and designing pedestrian links.     

实现多组态计量软件集中监控的可行性分析

天然气自动计量系统有多种组态软件,由于软件的不相通性,造成了计量系统数据采集的通用性差、数据传输与入库的时效性差、数据利用的可靠性低.结合各组态软件的实际情况,从设计上充分利用Oracle大数据处理能力以及Partition(分区表)的特性,实现历史数据的存储,应用WebService与COM+数据访问组件提供多层数据访问架构,采用OPC与DDE工业数据交换协议,实现了各站场计量数据的实时上传,为连续数据采集和实时监控提供了可能,节约了改造成本.     

注汽管道承压能力评估和实物试验验证

基于失效评估图技术对某注汽管道进行了承压能力评价,给出了管线在不同腐蚀壁厚情况下的极限承压能力和极限裂纹尺寸。并利用实物爆破试验验证了评价方法的安全性和有效性,通过对爆破断口进行宏观和微观分析,发现管段的开裂属于脆性开裂。     

Non-parametric analyses of efficiency of airports

This paper estimates the efficiencies and productivity changes of 12 international airports in the Asia-Pacific region based on data from 1998 to 2006. We apply stochastic frontier analysis (SFA) to compute efficiency estimates and use the Malmquist productivity index (MPI) to analyze productivity changes. We use the SFA model with a translog-type production function after testing the statistical hypotheses. According to the results of the SFA hypothesis tests, airports have experienced a technological regression; the deviations from the efficiency frontier are caused more by technical inefficiency than random noise. However, the inefficiency was found to decrease. The MPI reveals a declining trend resulting more from technological change than from efficiency change, with a decrease in inefficiency. Taken together, both the hypothesis tests and the MPI not only provide consistent conclusions, but also suggest that airports should concentrate on technological progress.     

波纹管应力分析研究进展

评述了波纹管应力理论研究方法的进展情况，围绕解析法、工程近似法和数值法，对波纹管理论研究中的一些主要成果作了较详细的回顾和总结，对各种研究方法作出了评价，展望了亟待解决的一些问题。     

输油管道中原油乳状液的流变性研究

原油乳状液的流变性是原油开采后在管道中输送的重要研究方面,为了更好地研究这一性质,采用电动搅拌机、偏光显微镜以及流变仪等仪器来测定不同含水率的原油乳状液在不同条件下的黏度,观测不同含水率的原油乳状液在偏光显微镜下的形态。并且分别对原油乳状液的黏度与含水率之间的关系以及与剪切速率之间的关系进行研究,初步确定了所测区块原油乳状液的转相点以及该区块原油乳状液的流变特性,为生产中的油气集输提供了理论依据。     

埋地管道防腐保温层失效评价

明确埋地管道防腐保温层的技术评价标准,对埋地钢质管道的安全运行,延长管道使用寿命具有重要意义。为了对埋地管道防腐保温层做出有效评价,从间接检测与开挖检测2个方面,结合现场检测数据,提出了基于防腐保温层的电流衰减率、绝缘电阻率、质量状况与厚度的分级评价标准及基于4种评价指标的综合评判方法。工程实践表明,该评价标准对防腐保温层是否存在失效能做出有效判断。     

城市轨道交通杂散电流监测系统概述

介绍了城市轨道交通工程中杂散电流不同的监测系统的构成,分析了集中式、分散式和智能型等监测系统的配置和功能,以及智能型实时在线监测系统的重要意义,为轨道交通工程杂散电流监测系统的选择与应用提供参考。     

Preliminary results of an analysis of areas of influence in Shanghai

The main deficiency of most current modeling approaches to transportation can be identified as neglect of the integration of existing geographical knowledge in regard to the ex ante transport/land use modeling approaches, with its focus on territorial dynamics and theory development. This paper addresses this aspect of the problem by introducing a theoretical and methodological framework for the analysis of the interrelationship between land uses. The analysis attempts to determine to what extent the functional land use in a city can be considered an ordered pattern. The order sought does not rely on purely spatial configurations, but on the correlation of transportation and land use. The first section of this paper focuses on theoretical considerations. It stresses the fact that conventional approaches do not apply in the present context. It then suggests an alternative based on areas of influence and measured in terms of level of attractance of land uses. The second describes a procedure based on this alternative following the remarkable contribution of Hanjoul, Beguin and Thill. An application of this procedure to the analysis of Shanghai is then examined. Finally, an evaluation of the strategies for optimizing the interrelationship between land uses is presented. The paper concludes with a possible research agenda.     

Direct analysis of the perceived importance of attributes of reliability of travel modes in urban travel

Reliability of travel modes was found to be the most important characteristic of transportation systems in several attitudinal investigations of individual travel behavior. This paper represents the first part of a research effort aimed at gaining a better understanding of the characteristics of reliability of transportation modes in urban travel. In this research, reliability characteristics are identified; their importance relative to each other is assessed, and an insight into possible structure of an objective reliability index is discussed. The research is based on perceived values of reliability, which were identified through a large attitudinal survey conducted in the Chicago metropolitan area.