Increasing urban tram system efficiency,with battery storage and electric vehicle charging

This paper examines the possible placement of Energy Storage Systems (ESS) on an urban tram system for the purpose of exploring potential increases in operating efficiency through the examination of different locations for battery energy storage. Further, the paper suggests the utilisation of Electric Vehicle (EV) batteries at existing Park and Ride (P&R) sites as a means of achieving additional energy storage at these locations. The study achieves this through MATLAB modelling utilising captured GPS data and publically available information. This study examines the scenario of uni-directional substations with no interconnection between the overhead catenary for both directions of travel, and discusses the trade-offs between ESS size and required current limits.The results show the savings in both energy and basic CO₂ emissions alongside the discussion of Return on Investment (RoI) that can be achieved through the potential installation of ESS at identified ideal locations along the tram network. Moreover, this may be extended to the use of EVs as stationary ESS sited at the existing P&R facilities. Further, the model may also be used to inform future infrastructure upgrades and potential improvements to air quality within urban environments.     

基于银联支付接口的车船税网上申报缴纳系统的设计与实现

为了免去广大机动车主窗口办理业务带来的不便之处,通过开发实施网上缴费系统提供便民服务,对已经登记过资料的非首次缴费机动车提供网上申报缴纳车船税功能,并提供发票打印功能;另外也为业务管理部门工作人员提供相关的后台统计管理工具,能够自动统计相关数据,呈现对应的统计报表。     

Research on the Variable Steering Ratioof Four-Wheel-Steering Vehicle

The steering characteristic of afour-wheel-steering vehicle is numerically simulated for in-depth research of the handling stability offour-wheel steering．The research results show that the deteriorating tendency of the steering stability due to the increase of the vehicle speed is improved obviously in the case of four-wheel steering．The approach of variable steering ratio is discussed.The use of the variable steering ratio can not only raise the steering stability of vechicles at high vehicle speed，but also reduce the dicomfort and steering burden of drivers；and hence is helpful for the subjective evaluation of four-wheel steering vehicles．     

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智能交通系统（ITS）是目前世界交通运输领域的前沿研究领域,也是未来交通运输系统的重要发展方向;而智能道路系统（IRS）作为ITS的重要组成部分,一直是世界交通发达国家研究、发展与应用的热点。结合我国道路交通基础设施的发展现状,面向国内智能道路系统的应用与发展需求,分析了智能道路系统的概念及其内涵,提出了智能道路系统的体系框架结构,深入讨论了实现智能道路系统集成所面临的若干关键以及难点技术,并对智能道路系统今后的发展与应用趋势作了总结。     

桥头跳车问题探讨

对近年来公路桥头跳车的原因进行了总结,并据此对桥头跳车的处理措施从地基预压处理、路基处理、路面处理和桥头搭板的设计等方面进行了论述,以减少公路运营中桥头跳车的现象。     

浅论高等级公路桥头跳车产生的原因及防治措施

从高等级公路施工的要求、特点,对高等级公路施工中应该解决的问题进行了分析。阐述了高等级公路桥头跳车产生的原因及防治措施。     

应用车辆牌照自动识别系统自动检测行程延误的算法研究

为实现行程延误信息的实时自动采集,并提高信息采集的准确性,本文提出了应用车辆牌照自动识别系统实时自动采集行程延误的思想,并设计了面向路网的行程延误算法．该方法可以为交通管理与控制、路线诱导及交通规划等方面的研究提供重要的基础数据,具有广泛的应用前景．     

高速公路桥头跳车原因分析及防治措施

分析调整公路桥头跳车原因,提出了用无砂大孔混凝土和CFG桩处理桥涵台背区不均匀沉降的方法,从而有效地减轻桥头跳车现象。     

基于VPS的电子收费技术研究

基于VPS的电子收费系统是目前世界上正在蓬勃发展的道路收费系统。研究了VPS电子收费系统的系统原理和工作原理；比较分析各种电子收费系统的优劣，研究VPS电子收费技术的适用性；最后展望了这种收费技术在我国的应用前景。     

基于运动矢量的车辆实时跟踪系统

建立了基于摄像机、图像采集卡及计算机的车辆跟踪硬件系统.研究了基于运动矢量的车辆跟踪算法.作者首先进行背景初始化,然后,利用背景差法和检测线法对通过目标交通场景的车辆进行检测,进而根据三步法计算车辆的运动矢量,并进行车辆位置的更新和遮挡处理,实现了车辆的实时跟踪.