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Lessons Learned for CBTC Data Communications Subsystems Design and Deployment in a “Brown Field” Environment

[+] Author Affiliations
Michael Fitzmaurice

Parsons, New York, NY

Paper No. JRC2017-2269, pp. V001T03A005; 4 pages
  • 2017 Joint Rail Conference
  • 2017 Joint Rail Conference
  • Philadelphia, Pennsylvania, USA, April 4–7, 2017
  • Conference Sponsors: Rail Transportation Division
  • ISBN: 978-0-7918-5071-8
  • Copyright © 2017 by ASME


The data communications subsystem or DCS is an important element of a CBTC system which supports the wired and wireless data communications between a CBTC equipped train and the wayside elements such as zone controllers and the automatic train supervisory (ATS) system.

A “brown field” environment (as opposed to “green field” environment) represents an existing transit system that is already in revenue service and is being re-signaled with a new CBTC system. Such an environment typically represent the most challenging deployment for CBTC a system as it must be installed, tested and integrated in such a manner as to not adversely impact the transit agencies’ ongoing revenue service. Usually, one of the first elements of a CBTC system to be designed and deployed is the DCS. This paper will examine some lessons learned related to the DCS design, deployment, testing and commissioning for CBTC projects in a “brown field” environment with a view to improving future CBTC projects.

Copyright © 2017 by ASME



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