Optimal Communication Backbone Design for a Typical LRT Urban Transportation Case

In conjunction with the construction of a light rail transit (LRT) line, a new communication infrastructure becomes essential to support safe, reliable and continuous operations. In addition to remote monitoring and control of LRT operations, such an infrastructure facilitates interactions and exchanges between various City services. Typical communication infrastructure covers the entire alignment including operational control center and offices close or remote to the alignment itself. In any case, communication backbone infrastructure is an integrated solution that brings together various aspects of communication services and the entire user’s scope of requirements. Therefore, industry best practices include the following: (1) Sufficient coverage and capacity to guarantee current and future requirements based on scalable configurations and throughputs; (2) Measures for continued operations including redundancy for all major communication aspects; and (3) The backbone infrastructure established along the entire corridor with connectivity to each Traction Power Substation (TPSS), wayside cabinet, station, stop and data/control centre including specific needs along bridges, elevated sections and/or tunnels. Traditional networking design in these applications employs the use of ring-based network architectures. In these scenarios a ring network is susceptible to a service disruption should there be an event that occurs at more than one point of failure. As a result of advances in technologies, lower media costs, and a distributed device design, a communmications backbone that can operate despite multiple points of failure and will allow higher speed applications as compared to conventional designs is able to be constructed. A typical communications backbone infrastructure supports interoperability and communication centric applications with preferably IP based field devices to ensure true distributed networking approach.

• Record URL:
  • http://www.apta.com/mc/rail/previous/2013/papers/Papers/AleksicO-CorovicD-SmithC-OPTIMAL-COMMUNICATION-BACKBONE-DESIGN-FOR-A-TYPICAL-LRT-URBAN-TRANSPORTATION-CASE.pdf
• 
• Supplemental Notes:
  • Abstract used with permission from American Public Transportation Association.
• Corporate Authors:

  American Public Transportation Association

  1666 K Street, NW, Suite 1100
  Washington, DC  United States  20006
• Authors:
  • Aleksic, Obrad
  • Smith, Craig
  • Corovic, Djoko
• Conference:
  • 2013 Rail Conference
  • Location: Philadelphia PA, United States
  • Date: 2013-6-2 to 2013-6-5
• Publication Date: 2013

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures;
• Pagination: 9p
• Monograph Title: 2013 Rail Conference

Subject/Index Terms

• TRT Terms: Best practices; Communication; Distributed control; Infrastructure; Interoperability; Light rail transit
• Subject Areas: Data and Information Technology; Public Transportation; Railroads; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01502485
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 24 2013 1:09PM