我国建成世界最大规模的隧桥结合工程

目前世界上规模最大的隧桥结合工程——上海长江隧桥于2009年10月31日上午正式建成通车，我国第三大岛崇明岛从此结束了没有通往大陆的路上通道的历史。     

上海崇明越江通道长江隧道工程综述（一）——长江隧道工程设计

介绍了上海长江隧桥（崇明越江通道）工程的建设背景、规模和上海长江隧道建设的自然条件;阐述了工程总体设计方案,以及超大直径盾构隧道管片结构、大深度高水压管片防水、长距离隧道通风系统和防灾体系等关键技术方案;描述了两台Ф15430泥水加压复合盾构机的性能特点;叙述了隧道总体施工方案和盾构隧道施工正面稳定、大直径隧道抗浮、长距离施工测量、内部结构同步施工、成淡交替土层环境条件下连接通道施工等长大越江隧道关键施工技术方案和风险预案措施。     

上海轨道交通崇明线正式报审

正上海市交通委员会日前在对上海市人大代表的答复中透露,上海轨道交通崇明线已纳入新一轮轨道交通近期建设规划(2017~2025年),并正式向国家发改委报审。据悉,上海已经提出两条连接崇明的交通通道方案:一是"东通道方案",结合长江隧桥预留工程,在崇明岛东侧由浦东经长兴岛至崇明陈家镇;二是"西通道方案",即在崇明岛西侧连接石     

崇明至启东长江公路通道工程(上海段) 长江上的“绿走廊”

正上海长江隧桥通车让崇明岛融入到了上海市的发展中去。而后,崇启大桥的贯通又将崇明岛拉入了长三角发展中的重要区域。区位条件的进一步改善,让崇明多年积淀蓄势的生态价值和生态品牌,有了转化为经济和社会效应的更好的外部条件。与牺牲生态环境为代价获取经济繁荣所不同的是,这个中国第三大岛在连接外部的同时,依旧郁郁葱葱,花鸟繁盛。     

长江入海第一桥通过交工验收

2011年12月13日，长江入海第一桥——崇启长江大桥项目通过了交通运输部专家组的评议，并于14日通过交工验收。专家组认为崇启长江大桥结构设计合理，工程质量优良，技术创新全面，在特大型桥梁建设安全、优质、创新、环保等方面取得了新的突破，是我国桥梁建设的又一杰出代表作。     

组合式扣索锚碇在合江长江一桥中的应用

文章以合江长江一桥为例,针对重力式地锚方案体积庞大、使用混凝土较多的问题,提出了预应力-重力式组合式扣索地锚在合江长江一桥扣挂系统中的应用方案与施工工艺,并通过组合式锚碇与重力式锚碇的技术和经济性比较,评述了组合式扣索锚碇的优势。     

厦门东通道跨海工程隧道方案比选

文章详细介绍了即将实施的厦门东通道跨海工程项目,阐明了隧道方案在该工程实施中的优越性,并根据东通道隧址的地质、地形特性及两岸接线、环保要求,详细探讨了钻爆法、掘进机法及沉管法三方案修建本海底工程的设计施工难点、重点及施工组织特点,通过分析三种方案的优缺点,推荐采用钻爆法修建.现阶段国内多处正在规划跨海、跨江工程,期望能对类似工程有一定的参考价值.     

上海长江隧桥工程环境保护技术概述

介绍和分析了上海长江隧桥工程在设计、施工和运营阶段中,对周围生态环境、声环境、水环境及社会环境产生的影响以及针对这些影响采用切实可行的保护措施,可为同类特大型工程的环境保护提供参考。     

南京长江水底隧道施工期通航问题研究

依据南京长江水底隧道隧址河段的航运基本情况以及沉管段施工工序组成.分析了沉管施工期对航运可能产生的影响.提出了相应的航道维护方案和安全维护措施.并采用航迹线计算方法对航道维护方案进行验证.得出了沉管施工期隧址河段通过采取措施仍可维持通航的结论.     

李彦武:优质工程是干出来的

正从崇启长江公路通道工程到泗县至宿州高速公路、黄衢南公路浙江段二期工程,再到舟山大陆连岛工程西堠门大桥和金塘大桥,一个个辉煌成就的背后,是我国公路建设技术创新、工程质量控制、人文自然环境和谐统一的动人故事。在作为评审组首席专家,现场考察过"2014~2015公路交通优质工程(李春)奖(以下简称"李春奖")"获奖项目的交通运输部原质     

面向隧道安全的多普勒雷达及全景视频联动预警系统

文章提出一种基于多普勒雷达与全景视频联动预警机制,有效的降低了隧道内交通事件误报率,同时比全图像检测方式更有成本和交通量采集上的优势。最后提出了隧道联动预警系统相关建议。     

隧道三维激光扫描测算一体化技术方案与实践北大核心CSCD

三维激光扫描技术已在隧道工程中得到广泛应用,但其内外业脱节、人工操作过多、实时性不足等问题日益凸显。文章结合工程实践,提出三维激光隧道扫描测算一体化技术方案,通过隧道设计模型录入、坐标里程解算、点云自动过滤、点云降采样与地物分离等,对点云进行特征值提取,得到兼顾规模、精度、效率的点云数据模型;通过点云与设计、点云与点云的对比解算,得到隧道工程质量安全相关成果。该技术方案在某铁路隧道工程中进行实践,可将内外业工作总时间缩短至20 min以内,自动化程度高,成果精度好,具有很好的推广价值。     

新时期“服务区+旅游”发展模式及功能定位

为了满足人们对高速公路服务区功能多元化需求,支撑高速公路服务区可持续发展,本文探索了“服务区+旅游”概念,从地理位置、自然资源、文化资源、产业资源、车流量多维度分析了“服务区+旅游”特征,研究了新时期背景下“服务区+旅游”典型融合模式和单体服务区+旅游融合发展功能定位,并以莆炎高速(福州段)梧桐服务区为开展实证研究。结果表明:1)服务区+旅游典型模式宜划分为综合型、自然资源型、人文资源型、基本型四种;2)单体服务区+旅游融合发展应从区位因素、资源因素、经济因素进行功能定位;3)通过实践应用,福建莆炎高速梧桐服务区功能定位为综合型服务区。研究成果可以强化服务区社会效益,适当提高其经济效益,支撑高速公路服务区的可持续发展。     

旅游交通规划成套技术探究

从行业、角度、目标和路径四大方面更新旅游交通规划理念,建立时空、资源、体验三大模块规划体系,达到旅游交通网络构建、功能拓展、配套完善的效果。在此规划体系基础上,根据不同地区特色,突出主题品牌设计,创新产品供给,紧密结合当地规划与落地方案,形成了丰富的规划应用成果,为交旅融合快速发展奠定理论基础。     

新时期交通运输与其他产业融合特征

推进交通运输与其他产业融合是贯彻党中央精神、加快交通强国建设的重要支撑。本文系统阐述了我国交通运输与其他产业的内在联系,剖析了融合的作用机理,对新时期交通运输与其他产业融合进行了定义,分析了融合的主要特征,提出了发展对策建议,对于指导交通运输与其他产业融合、推动交通运输行业高质量发展、建设交通强国具有重要意义。     

信息资源整合工程的监理分析

文章结合广西交通信息化项目建设的实际情况,从信息系统监理角度分析信息资源整合工程建设过程中产生的问题及原因,并就如何解决和处理这些问题作了进一步的探讨,提出以后出现类似问题的对策。     

长三角一体化框架下新建苏州机场的战略价值

本文从"坚持以人民为中心"的发展立场、解决不平衡不充分发展问题、融入国内国际双循环、构建更高水平一体化的城市—区域、综合交通体系建设以及机场布局规划制度创新等多个维度,阐述了长三角一体化背景下规划新建苏州机场的战略价值和社会实践意义。     

An autonomous system for maintenance scheduling data-rich complex infrastructure: Fusing the railways’ condition,planning and cost

National railways are typically large and complex systems. Their network infrastructure usually includes extended track sections, bridges, stations and other supporting assets. In recent years, railways have also become a data-rich environment.Railway infrastructure assets have a very long life, but inherently degrade. Interventions are necessary but they can cause lateness, damage and hazards. Every day, thousands of discrete maintenance jobs are scheduled according to time and urgency. Service disruption has a direct economic impact. Planning for maintenance can be complex, expensive and uncertain.Autonomous scheduling of maintenance jobs is essential. The design strategy of a novel integrated system for automatic job scheduling is presented; from concept formulation to the examination of the data to information transitional level interface, and at the decision making level. The underlying architecture configures high-level fusion of technical and business drivers; scheduling optimized intervention plans that factor-in cost impact and added value.A proof of concept demonstrator was developed to validate the system principle and to test algorithm functionality. It employs a dashboard for visualization of the system response and to present key information. Real track incident and inspection datasets were analyzed to raise degradation alarms that initiate the automatic scheduling of maintenance tasks. Optimum scheduling was realized through data analytics and job sequencing heuristic and genetic algorithms, taking into account specific cost & value inputs from comprehensive task cost modelling. Formal face validation was conducted with railway infrastructure specialists and stakeholders. The demonstrator structure was found fit for purpose with logical component relationships, offering further scope for research and commercial exploitation.     

The evaluation of the spatial integration of station areas via the node place model; an application to subway station areas in Tehran

Urban planners usually consider the transportation system and land use systems in different ways. The node place model is an analytical tool that explores the interaction between the transportation and land use systems in station areas in an urban region. The essential issue with the node place model is spatial. To address this issue, spatial indices are added to the model. Another purpose of this paper is to provide a procedure to identify the most effective transportation and land use dynamics in station areas. In this respect, canonical correlation analysis was conducted on data concerning Tehran’s subway stations. The resulting spatial indices have a fairly logical relationship with other transportation and land use indices, and it is useful to incorporate these indices in the node place model. The case studies demonstrated that a well-integrated, continuous and dense spatial configuration of the street network in station areas is associated with an increase in the variety and intensity of activities, an increase in the workforce and better accessibility for the station by attracting greater pedestrian movement. Additionally, these case studies indicated that to sustain a station area, the streets that exist in a station area and the streets that are connected to a station should be connected to the streets that locally benefit from well-integrated areas within fewer steps.     

Integrating vehicle positioning data in quality control programs in public transit: a European perspective

Abstract

The purpose of this paper was to show how vehicle positioning data collected through global positioning systems (GPS) or similar applications can be used in quality control programs of public transit operators to better assess the quality and performance of transportation services, and improve them. The paper describes the concept of the integration between quality control programs and vehicle monitoring systems, presents a case study where the concept has been successfully implemented, and discusses the benefits from the adoption of such an approach. The implementation of the concept is characterized by efficiency, accuracy, reliability, and optimization: efficiency in terms of data flow; accuracy and reliability in terms of quality and performance indicator values; and optimization in terms of optimum use of the available information technology infrastructure. The paper places particular emphasis on aspects relating to the interface between urban transportation services, vehicle positioning technology, and policy-making.