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城市公交规划、管理工作迫切需要信息化技术给予定量的决策数据支持.公交出行分布数据通常基于居民出行调查获得,然而因其调查代价巨大不能作为常态化调查手段.短期的公交线网调整工作更依赖于现状的公交出行分布需求,本文由此提出了一种利用公交GPS和IC卡(含老年卡)数据推算现状公交出行分布的实用方法.当前在大城市常住人口使用IC卡作为公交支付手段已得到相当普及,采用基于车载GPS和乘客IC卡记录能够推断得到全日公交OD数据并用于公交出行量回归模型的标定.模型检验通过后,可结合人口数据和就业岗位资料用标定模型计算以投币作为主要付费方式的流动人口公交OD;叠加两部分OD得到完整的城市公交出行分布结果.该模型的有效性通过2010年郑州市综合交通调查实践得以验证,对其它城市具有借鉴意义. 相似文献
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This paper shows how to recover the arrival times of trains from the gate times of metro passengers from Smart Card data. Such technique is essential when a log, the set of records indicating the actual arrival and departure time of each bus or train at each station and also a critical component in reliability analysis of a transportation system, is missing partially or entirely. The procedure reconstructs each train as a sequence of the earliest exit times, called S-epochs, among its alighting passengers at each stations. The procedure first constructs a set of passengers, also known as reference passengers, whose routing choices are easily identifiable. The procedure then computes, from the exit times of the reference passengers, a set of tentative S-epochs based on a detection measure whose validity relies on an extreme-value characteristic of the platform-to-gate movement of alighting passengers. The tentative S-epochs are then finalized to be a true one, or rejected, based on their consistencies with bounds and/or interpolation from prescribed S-epochs of adjacent trains and stations. Tested on 12 daily sets of trains, with varying degrees of missing logs, from three entire metro lines, the method restored the arrival times of 95% of trains within the error of 24 s even when 100% of logs was missing. The mining procedure can also be applied to trains operating under special strategies such as short-turning and skip-stop. The recovered log seems precise enough for the current reliability analysis performed by the city of Seoul. 相似文献
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朱嘉斌 《城市轨道交通研究》2015,(10):11-13
为最大化利用社会资源,苏州轨道交通在首条线路自动售检票(AFC)系统设计和网络化建设中兼容了PBOC1.0标准的苏州通卡。阐述了兼容"苏州通"项目需解决的"苏州通"不支持复合消费、预留票务空间不足、发行批次多、发行数量多、天线参数不一致等问题,以及相应的解决方案。苏州轨道交通AFC系统在建设过程中通过硬件、软件的针对性设计,克服了兼容老规范票卡、统一读写器处理流程、实现票卡互联互通等难题,取得了较好的经济效益和社会效益。 相似文献
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对现有间歇式沥青混合料搅拌设备的控制系统进行扩充后,增加实时监视和报警功能,并能将主要的拌和参数存盘记录。经实践表明,该监视系统具有较好的实用性和较高的可靠性 相似文献
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绩效评价体系在企业发展中起着重要作用。阐述了绩效评价与企业管理的关系,对传统绩效评价缺陷进行了分析,并且对非财务指标的选择亦作一介绍。最后,介绍了一种绩效评价体系的新发展——平衡记分卡,从4个方面分析了平衡记分卡的优越性,可作借鉴。 相似文献
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