共查询到20条相似文献,搜索用时 46 毫秒
1.
2.
3.
4.
贺昉 《城市公交规划与管理》2004,(5):18-19
每天上午8点左右,正值上班客流早高峰,上海巴士一汽五分公司123路运光新村终点站,却看不到车辆排队、客流拥挤,候车乘客排成长龙的场面。每隔两分钟左右,就有一辆空调车准点驶进站点,乘客井然有序稳笃笃上车,车上乘客基本都有座位,按照线路长度和客流量,这一场面在其他居住人口稠密的公交终点站是不多见的。 相似文献
5.
6.
本文通过分析公交持卡乘客的出行数据,挖掘乘客的出行规律,改进基于出行链理论的下车站点推导方法,并建立、检索站点邻域集以提升下车站点的推导效率。借助攀枝花市特殊的自动收费系统,利用分段计费线路的下车数据验证了方法的有效性,结果表明下车站点的推导结果具有较高的精度。同时探究了最大步行距离阈值对推导结果的影响,给出不同场景下的应用建议。此外研究分析了不同线路、不同群体的推导效果,对其内在原因做出解释,提供了模型方法的改进方向。研究结果有助于分析乘客的公交出行行为,支撑辅助型公交的需求分析和布设,提升公交服务水平。 相似文献
7.
常州市公共交通集团公司 《交通节能与环保》2012,8(1):72-75
项目针对快速公交的线路与道路规划、BRT系统整体设计、工程建设实施、运营组织与管理等,形成了由一、二号线及环线组成的"十字加环"的快速公交骨架网络系统。该系统主要特点:采用了非物理隔离的公交专用道、中央侧式站台以及安全屏蔽门;采用了低能耗、低排放、技术先进的大容量车辆;优化了线路走向、交通信号配时,形成了支线与干线组合的运营模式;开发了具有GPS、通讯、电子站牌、信息服务等功能齐全的快速公交智能化系统;实现了站台售票及同台同向免费换乘。 相似文献
8.
《西部交通科技》2020,(1)
信号系统是肩负地铁行车安全和效率的安全苛求系统,为了应对信号系统故障难以避免的行车效率波动,提前制定地铁-公交联动应急预案是行之有效的手段之一。文章从轨道交通乘客体验出发,以轨道交通受扰后的恢复能力(即弹性)为优化目标,提出了一种综合考虑路面交通状况、地铁站点地理位置、地铁客流潮汐分布等因素的优化公交桥接应急预案生成方法。首先,在地铁站周边的地图数据的基础上叠加拥堵系数,建立道路拓扑网络模型;而后基于改进的k短路径法计算连接起点和终点地铁站点的最短路径,利用遗传算法优化相关站点所需公交数量,并将该方法应用于地铁5号线。仿真结果表明,通过在故障区域增加临时公交服务,对提升信号系统故障后的城市轨道交通系统弹性具有重要意义,且适当的公交桥接线路的调整更有助于系统弹性的提升。 相似文献
9.
10.
11.
12.
6月15日,首届南中国国际客车展在广州花城展览中心隆重举行.中大汽车在展会上一举推出了最新研制的五大系列豪华客车新产品.
中大YCK6139HGW豪华高档特大型客车,成为本次展会耀眼的明星车型之一,吸引了众多与会人士的目光.该车型采用欧美最新流行造型,时尚、大气、整车浑然一体、饱满圆润,独特的前挡风设计,即有王者风范又不失典雅. 相似文献
13.
Bus Priority Using pre-signals 总被引:2,自引:0,他引:2
The need to provide efficient public transport services in urban areas has led to the implementation of bus priority measures in many congested cities. Much interest has recently centred on priority at signal controlled junctions, including the concept of pre-signals, where traffic signals are installed at or near the end of a with-flow bus lane to provide buses with priority access to the downstream junction. Although a number of pre-signals have now been installed in the U.K., particularly in London, there has been very little published research into their design, operation and optimisation. This paper addresses these points through the development of analytical procedures which allow pre-implementation evaluation of specific categories of pre-signals. The paper initially sets out three categories of pre-signal, which have different operating characteristics, different requirements for signalling and different impacts on capacity and delay. Key issues concerning signalling arrangements for these categories are then discussed, together with a summary of the analytical approach adopted and the assumptions required. Equations are developed to allow appropriate signal timings to be calculated for pre-signalised intersections. Further equations are then developed to enable delays to priority and non-priority traffic, with and without pre-signals, to be estimated with delay being taken here as the key performance criterion. The paper concludes with three application examples illustrating how the equations are applied and the impacts of pre-signals in different situations.The analyses confirm the potential benefits of pre-signals, where these signals apply to non-priority traffic only. Where buses are also subject to a pre-signal, it is shown that disbenefits to buses can often occur, unless bus detectors are used to gain priority signalling. 相似文献
14.
15.
16.
17.
18.
19.
Kofi Obeng 《运输规划与技术》2013,36(1):77-87
This paper examines bus ride times of exceptional school children in North Carolina. It uses levels of service data, which show excessive ride times for exceptional school children, to form clusters of local education agencies. From these clusters short term objectives or standards for maximum ride times are determined for each cluster. Among the findings are three distinct clusters of local education agencies (clusters 1, 2 and 3) whose maximum ride times are respectively 170 minutes, 105 minutes and 62 minutes. The maximum ride times show that only one cluster (cluster 3) provides a service whose maximum ride time is comparable to the ideal maximum ride time (long term objective) of one hour revealed by the literature and also by responses of school superintendents and transportation directors. Methods of achieving these standards are examined. A comparison of the levels of service of regular and exceptional children transportation is also provided. 相似文献