Road infrastructure and economic development in the periphery: the case of A55 improvements in North Wales

This paper examines the impact of a major road improvement programme on the economic development of North Wales. The paper identifies the economic impacts of the road on a selection of firms and organisations in North Wales, and provides a modelling framework to examine the static and dynamic effects of road improvements. Road improvements across North Wales are found to be a necessary, but not sufficient, condition for economic development in this peripheral area.     

水泥混凝土路面板破坏的原因及其防治

根据我国已建成通车的高等级公路的使用情况，从路基施工前准备、路基施工、台背处理、路面施工及路表面排水处理等方面较全面地分析了水泥混凝土路面破坏的原因及其防治。     

浅谈如何打造学习型公路行业

在新的历史时期,建立学习型公路行业尤为重要.要树立三种学习观,通过建章立制,创新形式等措施,来打造学习型公路行业.     

探讨无人值守自动发卡机在高速公路收费站的应用

目前,我国高速公路网络发展迅速,给人们带来交通便利的同时,也产生了许多问题。如何提高对高速公路各路段的综合管理水平,充分发挥路网中各高速公路之间快捷、畅通的通行优势,最大限度地降低人为干扰因素,已成为摆在高速公路管理者面前的一项新的研究课题。为此,尽快实现联网收费成为交通管理部门的重要工作目标之一。文章从工程应用的角度,对当前高速公路收费站应用无人值守自动发卡机工作流程的特点和通信过程中可能遇到的问题进行详细分析。     

论路基路面施工质量通病及控制措施

公路工程质量问题成为一个焦点问题,为切实控制好路基分层施工,对填方路基必须按路面平行线分层控制填土标高;为切实控制路基压实度,必须按试验路路基填土厚度的90%控制规模施工时的填土厚度。     

Attitudes,norms and difficulties underlying road sharing intentions as drivers and cyclists: Evidence from the Czech Republic

Cycling-inclusive urban planning is attracting attention worldwide because of the environmental, health, economic, and transport benefits inherent to cycling from the individual and the societal perspectives. The Czech Republic is one of the emerging cycling countries that are trying to promote and support cycling, but cycling mode shares are low because of the poor quality of the scarce infrastructure and the psychological barrier of the perceived lack of safety when cycling in mixed traffic. This study takes a multimodal approach based on the Theory of Planned Behaviour and focuses on the factors underlying the willingness to share the road from the perspective of cyclists and drivers: positive attitudes toward cycling, positive attitudes toward cyclists’ behavior, social norms toward cycling and anxiety to share the road. A web-based questionnaire was tailor-designed and administered in the Czech Republic via social networks, web forums, and the Civinet network, and a hybrid bivariate-ordered model tested the behavioral framework. Results show that the willingness to share the road as a cyclist or as a driver relates positively to positive attitudes towards cycling and cyclists’ behavior, and negatively to the anxiety of sharing the road. Moreover, mediator effects are observed and a clear relation emerges between the experience on the road as both a cyclist and a driver on the willingness to share the road as a cyclist. Lastly, results show that the factors underlying road sharing intentions are related significantly to gender, travel habits, and perceived personal and infrastructure-related barriers to cycling.     

我国丝绸之路经济带物流设施效率分析--基于DEA 模型的M almqusit指数方法

“道路联通”既是实现丝绸之路经济带“贸易畅通”的基础保障,也是实现“民心相通”、“货币流通”和“政策沟通”并最终实现区域经济一体化和社会文化融合的助推器。采用DEA模型的M almqusit指数分析法对我国丝绸之路经济带物流设施效率进行了分析。分析得出结论：贸易环境负向变化是造成我国丝绸之路经济带交通基础设施效率下降的主要原因;提高经济带物流设施对经济的贡献不应只关注新增交通基础设施,更应关注现有物流设施的运营效率;为提高经济带交通基础设施的整体效率,今后交通基础设施建设的区域结构应倾向于陕西、江苏、山西、安徽等仍存在物流设施规模效率的省份。     

谈谈粉煤灰在公路工程中的应用与施工工艺

本文就粉煤灰在公路工程施工建设中的应用与施工工艺做一下分析总结。     

煤巷掘进支护方式探讨

介绍了煤矿在煤巷掘进时采用煤体组合梁喷碹支护的一些做法。通过对围岩变形量的观测证实,在中厚煤层中只要选择合理的支护参数,在技术和经济上采用煤体组合梁喷碹支护方式都优于架棚支护方式。     

浅析路桥施工过程产生的问题及其处理方案

文章针对路桥施工过程产生的预应力技术问题、体外加固问题、防水层质量问题等几个典型问题及其处理方案进行了分析和探究。