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首页> 外文会议>18th world congress on intelligent transport systems : Featuring its america's annual meeting and exposition >DEPLOYMENT OF A HYBRID REGIONAL TRAFFIC SIGNAL AND CLOSED CIRCUIT TELEVISON COMMUNICATION SYSTEM: THE LOS ANGELES COUNTY EXPERIENCE
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DEPLOYMENT OF A HYBRID REGIONAL TRAFFIC SIGNAL AND CLOSED CIRCUIT TELEVISON COMMUNICATION SYSTEM: THE LOS ANGELES COUNTY EXPERIENCE

机译：混合区域交通信号的部署和闭路电视通信系统：洛杉矶县的体验

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摘要

This paper will describe “lessons learned” by the County Los Angeles Department of PublicrnWorks (Public Works) to deploy a hybrid communications system comprised of fiber, twistedrnwire pair, leased telephone lines and wireless radios to support the communications requirementsrnfor real time monitoring of traffic signals and closed circuit television cameras (CCTV) installedrnover a large noncontiguous geographical area, containing many jurisdictions, with the ultimaterngoal of providing an integrated solution to coordinate traffic signals and enable real timernmonitoring of traffic signals and CCTV cameras.rnTypical traffic signal system deployments are for a small, contiguous geographic area. Thernuniqueness of the deployment of communications in Los Angeles County is that it covers anrnexpansive region and requires an infrastructure that supports communications for individualrncities, Public Works’ maintained traffic signals (which includes both the unincorporated area asrnwell as individual cities), and agencies who have elected to have the Public Works host theirrntraffic signal systems. In addition, communications must be provided/supported for PublicrnWorks’ Information Exchange Network (IEN), which provides a mechanism to monitor thernoperation of traffic signals from different traffic signal systems and controller types acrossrnjurisdictional boundaries.rnThis paper will focus on the numerous methods used by Public Works to deploy communicationsrnand that has included high speed licensed microwave and unlicensed broadband radios to providernboth localized control and long distance backhaul functionality. The paper will focus onrnmethods use, hurdles overcome, and lessons learned in the process.
机译：本文将介绍洛杉矶县公共工程局（公共工程）部署由光纤，双绞线对，租用电话线和无线电组成的混合通信系统的“经验教训”，以支持通信需求，以实时监控交通信号闭路电视摄像机（CCTV）安装在一个包含多个辖区的不连续的较大地理区域内，最终目标是提供一种集成解决方案来协调交通信号并实现对交通信号和CCTV摄像机的实时监控。典型的交通信号系统部署是针对小而连续的地理区域。洛杉矶县通信部署的唯一性在于它覆盖了一个扩张区域，并且需要一个支持单个城市，公共工程保持的交通信号（包括非公司化区域和各个城市的通信信号）以及选举产生的机构的基础设施让公共工程托管其交通信号系统。此外，必须为PublicrnWorks的信息交换网络（IEN）提供/支持通信，该网络提供了一种机制来监视跨辖区的来自不同交通信号系统和控制器类型的交通信号的运行。公共工程部将通信宽带部署到提供商，包括本地许可的控制和长距离回程功能，其中包括高速许可的微波和非许可的宽带无线电。本文将重点介绍方法的使用，克服的障碍以及在此过程中获得的经验教训。

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