排序方式: 共有321条查询结果,搜索用时 272 毫秒
221.
如何将GPS与GIS技术相结合,来改善城市的道路交通状况是当前ITS研究中的重要组成部分,本文介绍了利用MapX控件开发车辆定位监控系统的基本原理和方法并按此方法进行了北京市公交抢修车辆调度系统的开发,取得了良好的效果. 相似文献
222.
车辆导航系统语音路径引导模块的实现 总被引:4,自引:0,他引:4
研究了路径引导模块在车辆导航系统中与其他模块的关系,以及语音路径引导功能的主要优点,设计了一种应用GIS为基础数据平台,结合路径规划模块以及定位模块的算法步骤,给出了行驶指令的生成、规划路径的跟踪与发声条件判断以及声频引导信息的生成三大关键子模块的实现方法。实际使用结果表明,该模块生成的声频引导信息准确及时,达到了设计目的。 相似文献
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����������·���ٹ�����BRT�����ܽ�ͨϵͳ������Ƹ�Ҫ 总被引:2,自引:2,他引:2
BRT 是一种介于城市轨道交通和地面公共汽车的快速公共交通系统,兴起于20世纪90年代中后期,在国外有很多成功的案例。北京南中轴路BRT是我国第一个真正意义上的快速公交系统,对我国BRT建设能够起到示范和引导作用。BRT智能公交系统的设计目标是:通过车站智能系统,路口交通信号优先系统,车载电子设备系统,智能调度系统,实现BRT场、站、道、中心设备的电子化、智能化;按照BRT的设计,调度、监控、指挥、服务的整体要求,采用网络、计算机、软件及系统集成技术,使BRT“人、车、道”有机结合,体现公共优势,实现智能化调度、自动化信息服务等BRT运营的目标;按照现代化公交企业管理的要求,设计能进行企业管理的信息管理及信息服务系统。 相似文献
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This article provides guidance for the effectiveness evaluation of transportation programs. It discusses the importance of
determining the significance of changes in outcome measures before versus after implementation of transportation programs.
The article reviews common weaknesses in example evaluations, and points to remedies, including structuring controls to help
determine the effects of transportation programs, and applying readily available statistical tests to determine the significance
of measured outcomes.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
225.
针对我国大中城市交通所面临的问题,以大连市的城市智能交通系统的建设为实例,着重分析了由于智能交通系统的实施,而给城市所带来的社会与经济效益。 相似文献
226.
ITS技术在内河海事预防中的应用 总被引:2,自引:0,他引:2
刘克中 《浙江交通职业技术学院学报》2003,4(1):31-34
从分析我国内河航运现状入手,对改善我国内河航运现状,提高内河航运的安全与效率,提出了自己的一些看法,主要包括运用现代信息技术和计算机技术发展内河ITS技术。 相似文献
227.
���ܽ�ͨϵͳ���ݳ����������о� 总被引:2,自引:0,他引:2
孙兆发 《交通运输系统工程与信息》2004,4(1):27-29
智能交通系统(Intelligent Transportation System)简称ITS,在现代交通领域具有美好的应用前景,是我们今后应该大力发展的方向.而数据管理特别是数据的抽样技术,在ITS研究中起着举足轻重的作用.基于此,本文结合国外的抽样技术的应用实践以及数理统计的相关理论,提出了智能交通中数据管理的思想以及数据抽样模型. 相似文献
228.
A Cooperative Intelligent Transport Systems (C‐ITS)‐based lane‐changing advisory for weaving sections
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Weaving sections, a common design of motorways, require extensive lane‐change manoeuvres. Numerous studies have found that drivers tend to make their lane changes as soon as they enter the weaving section, as the traffic volume increases. Congestion builds up as a result of this high lane‐changing concentration. Importantly, such congestion also limits the use of existing infrastructure, the weaving section downstream. This behaviour thus affects both safety and operational aspects. The potential tool for managing motorways effectively and efficiently is cooperative intelligent transport systems (C‐ITS). This research investigates a lane‐change distribution advisory application based on C‐ITS for weaving vehicles in weaving sections. The objective of this research is to alleviate the lane‐changing concentration problem by coordinating weaving vehicles to ensure that such lane‐changing activities are evenly distributed over the existing weaving length. This is achieved by sending individual messages to drivers based on their location to advise them when to start their lane change. The research applied a microscopic simulation in aimsun to evaluate the proposed strategy's effectiveness in a one‐sided ramp weave. The proposed strategy was evaluated using different weaving advisory proportions, traffic demands and penetration rates. The evaluation revealed that the proposed lane‐changing advisory has the potential to significantly improve delay. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
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