Unbundling tolls from contracts: a new road PPP model

Considerable evidence from different countries has revealed important shortcomings in most road public–private partnership (PPP) models. In this paper a new PPP model is presented that overcomes some of the problems found in PPP road contracts. The new model is based on separating user tolls from the fees paid to PPP contractors and setting up new institutional arrangements to oversee PPPs.     

路桥专业工学结合职业教育教学模式探索

结合四川交通职业技术学院道路桥梁专业"工学结合"的教学实践,提出高职教育"工学结合"的教学思路,阐述了"引工地进校园"教学模式的基本形式、教学方法可以有效地安全地实现工学结合的教学思路。论文同时总结了"引工地进校园"教学模式实践效果。     

ETC中基于RFID的双标签汽车牌照自动识别系统研究

目的:设计适用于ETC中的汽车牌照自动识别系统。方法:分析原有ETC系统的工作原理和弊端与不足,提出了基于RFID双标签的汽车牌照识别系统。结果:从理论分析可以得出本文提出的方法可以有效的克服原有ETC系统中的问题———如牌照识别率太低和跟车干扰情况严重等。结论:本文提出的RFID双标签汽车牌照自动识别系统能有效克服原有ETC系统中的弊端和不足,有一定的实践应用价值。     

电子不停车收费系统(ETC)现场检测研究

随着陕西高速公路发展,高速公路不停车收费系统(ETC)在高速公路收费站的应用越来越普遍,大大地提高了高速公路的通行效率,在对收费系统检测验收方面,依然存在着不少问题。本文从高速公路不停车收费系统检测的主要内容着手,分析了现行收费系统检测验收的方法,并提出了建议,对现场检测方法具有很大的指导意义。     

The hierarchy of roads, the locality of traffic, and governance

This study investigates the use of road networks both within and outside of home jurisdictions (city (or town) and county of residence) by analyzing GPS data collected in the Minneapolis—Saint Paul metropolitan area. The study tracked volunteers' travel behavior to determine which roads (and thus which class of roads) users chose to accommodate their travel needs. More than half of the travel on county roads and city streets occur outside of one's home city, but most travel is within one's home county. The average share of travel distance in the home county is more than 70% for both county and city streets. The high share, which does not account for non-residents destined for the county to work or shop, e.g., implies that the free rider problem on city and county streets at the county level is minimal. Of particular concern is travel on city roads in cities other than one's own. To the extent that this is to go to a destination in that city, that travel is also local. However, because city and county roads are typically funded by those jurisdictions from land-based sources such as property taxes, through trips with neither end in the city through which they are traveling are in a very real sense “free riders”, and pose a problem. With growing trip lengths and emerging economies of scale in road management, it may be appropriate to consider moving more roads from township, town, or city level to the county level of government.     

道路桥梁施工中高性能混凝土的应用探讨

随着科学技术的飞速发展,道路桥梁建设中的施工技术也在不断进步革新。利用高性能混凝土具有高耐久性、高工作性、高强度和高体积等良好品质铺设的高质量的道路和桥梁成为日后发展的趋势。近年来,高性能混凝土在道路桥梁工程中的应用日渐广泛,本文结合高性能混凝土自身的特点,对道路桥梁工程中高性能混凝土在道路桥梁建设中的应用问题进行了浅要分析。     

浅谈农村公路科学养护的途径

本文研究了农村公路养护的现状以及其存在的现实问题,并从多方面探讨农村公路科学养护的途径,从而为发展农村公路的建设打下基础。     

行政垄断程度评价指标体系构建及衡量──以中国收费公路行业为例

文章以收费公路行业行政垄断测度的指标体系构建为研究核心，从行业属性入手，运用动态聚类法，对具有行政垄断特性的八大基础设施行业进行类型聚类；使用距离判别法找出收费公路行业所属类别；参照同类别行业的测度指标，在SPRCP的基础上构建了具有收费公路行业特色且能科学界定垄断程度的测度指标体系。最后运用指标体系中的十六项评价指标实证测度行政垄断程度，将其结果与其它行业的测算结果进行对比，通过分析进一步验证了本指标体系的合理性，为治理该行业非合理性行政垄断指明方向。     

桥梁施工常见的质量问题与防范

本文结合笔者的多年桥梁设计经验和多次设计代表现场配合施工的经验,对桥梁施工常见的质量问题进行了主要的分析,同时提出了有效的防范对策,以期与同行交流。     

利用现有线路,发展高速列车：高速摆式列车技术

具有径向自导柔性转向架和车体倾摆技术的高速摆式列车，可以在既有铁路线上，不做大规模基础设施改造的情况下，大幅度提高列车运行速度。