LPG城市客车BRT改造及BRT车保障措施可行性分析

对广州市LPG城市客车进行BRT改造的主要内容以及BRT车的保障措施进行可行性分析,为其他城市推广应用BRT车提供参考.     

Analysis of real-time control strategies in a corridor with multiple bus services

Control strategies have been widely used in the literature to counteract the effects of bus bunching in passenger‘s waiting times and its variability. These strategies have only been studied for the case of a single bus line in a corridor. However, in many real cases this assumption does not hold. Indeed, there are many transit corridors with multiple bus lines interacting, and this interaction affects the efficiency of the implemented control mechanism.This work develops an optimization model capable of executing a control scheme based on holding strategy for a corridor with multiple bus lines.We analyzed the benefits in the level of service of the public transport system when considering a central operator who wants to maximize the level of service for users of all the bus lines, versus scenarios where each bus line operates independently. A simulation was carried out considering two medium frequency bus lines that serve a set of stops and where these two bus lines coexist in a given subset of stops. In the simulation we compared the existence of a central operator, using the optimization model we developed, against the independent operation of each line.In the simulations the central operator showed a greater reduction in the overall waiting time of the passengers of 55% compared to a no control scenario. It also provided a balanced load of the buses along the corridor, and a lower variability of the bus headways in the subset of stops where the lines coexist, thus obtaining better reliability for all types of passengers present in the public transport system.     

Methodology for calculating passenger capacity in bus rapid transit systems: Application to the TransMilenio system in Bogotá, Colombia

Transit textbooks and engineering manuals indicate that the capacity of Bus Rapid Transit –BRT – systems does not exceed 20,000 passengers per hour per direction. The implementation of the TransMilenio BRT System, in Bogotá, Colombia, showed that the systematic combination of multiple platforms at stations, overtaking lanes, level boarding, prepayment, large buses with multiple doors, express and local services, and traffic engineering measures at intersections, allow for very large passenger throughput. Measurements indicate actual throughput of 43,000 passengers per hour per direction with average bus occupancy of 150 passengers per articulated bus, and a commercial speed of 22–24 km/h. According to special formulas developed for the analysis of high capacity BRT corridors, the critical section of TransMilenio has a practical capacity of 48,000 passengers per hour per direction with its existing infrastructure and 150 passengers per bus – 35,000 passengers per hour per direction with 110 passengers per bus. Changes in existing infrastructure, such as additional platforms, higher capacity vehicles, non-grade facilities at critical intersections, among other improvements, may increase the capacity, speed, reliability and quality of service of the system.     

深圳BRT系统建设的思考

世界上许多城市部面临着城市交通拥挤的问题。这严重地制约了城市的发展。深圳市修建巴士快速公交系统EBRT（Bus Rapid Transit）是实现公交优先战略的一项重要措施。在近期内深圳地铁还无法形成网络采满足现阶段城市交通的巨大需求的情况下，BRT系统的投资少，建设周期短，而性能接近轨道交通的特点，必然能起到缓解近期交通拥堵、培养未来轨道运输客流、塑造合理的城市交通布局的作用。     

BRT推动TOD在我国适用性研究

随着我国经济日新月异的发展,城市化和机动化的现象越来越不可忽视。随之而来的是城市无序蔓延,交通、能源和环境问题日益突出。因此,我们的城市中心地带交通拥堵、空气质量恶化已成为重大难题。为了解决这些问题,研究了世界上其他类似国家和地区,吸取他们的经验和教训．提出了用快速公交推动城市发展的建议。论文分析了快速公交和公交引导发展的优势及适用性,比较了快速公交和其他公交模式的差异,最后建议在我国现阶段用快速公交来引导发展,结合土地使用和城市规划,实现城市的健康、高效、可持续发展。     

厦门快速公交系统的功能定位

结合厦门的城市规模及经济水平、居民的出行方式、城市道路条件等自身条件，对厦门快速交通系统（BRT）进行了合理的功能定位，并介绍了厦门BRT一期工程情况。实践证明，厦门BRT定位准确，对改善出行条件、缓解交通拥堵及提高出行效率起到很大作用，为破解城市交通难问题做出了有益尝试，充分体现了BRT“大容量、安全、便捷、准时、舒适”的特点。     

城市快速公交系统的场站布局规划研究

在分析城市快速公交系统场站的功能分类和规模标准的基础上,论述了城市公共交通场站建设的指导思想和原则,研究了不同类型公交场站的布局规划方法.通过上述内容的分析,确定了快速公交系统中针对不同类型场站布局规划的基本方法,有助于我国城市一体化公共交通客运系统的设计、建设与实施.     

现代有轨电车与快速公交BRT的比较及其在我国的应用

现代有轨电车与快速公交BRT为两种功能上比较接近的公共交通,分别从运能、运行速度、经济性、节能环保和美观等角度系统分析对比两种交通方式,并根据我国不同城市规模、特点,提出其发展有轨电车的应用模式,为今后旨在为后期工程实践提供参考依据.     

城市公共交通面临的挑战及应对策略——BRT的发展及应用的研究

中国城市公共交通发展面临着严重的挑战,城市快速公交系统(BRT)作为一种介于轨道交通与常规公交之间的新型公共交通运营系统以其独有的特征在世界范围内得到广泛推广,可有效地缓解城市道路拥堵.本文分析了我国大城市公共交通面临的问题,对BRT与常规公共交通进行了对比,总结了BRT的优势;介绍了国外快速公交系统发展的先进经验及对我国的借鉴意义,针对我国BRT发展现状,提出发展快速公交系统的建议.     

基于UML的BRT交叉口信号优先控制分析

BRT（Rapid Bus Transit）是一种介于轻轨和巴士之间的灵活的公共交通方式,是城市公共交通系统中的一种有效补充形式。BRT的运营方式有多种,对于其中的地面型BRT来说,交叉口信号优先控制是其运营的关键环节,是其接近轨道交通运营服务水平的保证。本文借鉴了交叉口信号优化控制的理论和方法．以及轨道交通中的一些理念。考察了BRT通过交叉口这一实际过程,分析了BRT交叉口信号优先控制系统的相关策略,控制流程和控制方法,并采用UML（Unified Modeling Language）统一建模语言,运用面向对象方法（OOA）对系统进行了进一步的建模和设计,使用VP—UML工具建立了系统的初步可视化模型。