Incorporate diagnostic tools to identify and verify problems in the transmission of video in a transit bus security system.
Experience from iFlorida Model Deployment
- Incorporate diagnostic tools to identify and verify problems in the transmission of video in a transit bus security system. The deployment of the LYNX Bus Security System occurred with few surprises and was completed in the fall of 2005. RTMC operators reported receiving high-quality video images from buses while on the instrumented portion of I-4. However, they found it difficult to consistently verify that the system was operating correctly. Buses were on the instrumented portion of I-4 at regular but infrequent intervals. RTMC operators periodically checked the system to see if video was present as a method for gauging whether the system was working. Without knowledge of when the buses were present, the lack of video could be caused by either the system working incorrectly or the fact that no buses were present on the instrumented portion of I-4. As time went on, it became apparent that the system was not working reliably, and FDOT reported in May 2006 that the system had been out-of-service for several months. Also, the cost of the system was relatively high-about $640,000 for the initial deployment and for maintaining the system from its deployment date through May 2007. The result was a high-cost approach for providing network connectivity to a small number of buses.
- Beware of rapid advances in video communications technologies while considering the deployment of a bus security system. The rapid advance of broadband communications technology has meant that this project, which was a cutting-edge application in 2003 when it was first considered, is no longer cutting-edge. A number of cities are now considering deploying broadband wireless networks on a much more extensive scale than that deployed in Orlando. Other approaches, such as cell modems, are being used to provide network connectivity to buses, and some of these approaches also provide sufficient bandwidth to support security video.
Author: Robert Haas (SAC); Mark Carter (SAIC); Eric Perry (SAIC); Jeff Trombly (SAIC); Elisabeth Bedsole (SAIC): Rich Margiotta (Cambridge Systematics)
Published By: United States Department of Transportation Federal Highway Administration 1200 New Jersey Avenue, SE Washington, DC 20590
Source Date: 01/30/2009
EDL Number: 14480URL: http://ntl.bts.gov/lib/31000/31000/31051/14480.htm
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CCTV, closed circuit television cameras, security