Cityflo 650 CBTC

CITYFLO 650 signalling is a CBTC system designed by Bombardier Transportation. It makes use of bi-directional radio communication between trains and wayside equipment, as well as true moving block technology, to control train operation. Trains report their position via radio, and a wayside signalling system provides movement authorities to the trains via a radio link.

Transit lines using the system
Transit lines using the Cityflo 650 system as of February 26, 2014 include the following:

In revenue service

 * Seattle Tacoma Int'l Airport, SeaTac, USA
 * Sacramento Int'l Airport, Sacramento, USA
 * San Francisco Int'l Airport, San Francisco, USA
 * McCarran Int'l Airport, Las Vegas, NV, USA
 * Phoenix Int'l Airport, Phoenix, USA
 * Dallas/Fort Worth Int'l Airport, Dallas, USA
 * SEPTA Subway-Surface Trolley Lines, USA
 * Heathrow Int'l Airport, UK
 * Gatwick Int'l Airport, UK
 * Line 1 and Line 6, Madrid Metro, Spain
 * Yong-In ART, South Korea
 * Wenhu Line, Taipei, Taiwan
 * Line 3, Shenzhen Metro, China
 * APM Line, Guangzhou Metro, China
 * Line 2 and Line 3, Tianjin Metro, China
 * Purple Line, Thailand
 * Line 9, MRT Kajang Line, Malaysia
 * Line 12, MRT Putrajaya Line, Malaysia
 * Line 15, São Paulo Metro, Brazil
 * M5 and M7, Istanbul Metro, Turkey
 * Bangkok Gold Line feeder system, Thailand
 * MRTA Pink Line and Yellow Line, Thailand

Under construction

 * Dubai Int'l Airport, United Arab Emirates
 * King Abdulaziz Int'l Airport, Jeddah, Saudi Arabia
 * King Abdullah Financial District Monorail, Riyadh, Saudi Arabia
 * Metro Tunnel (Sunbury Dandenong Line) - Melbourne, Australia
 * Line 7, Delhi Metro, India
 * Line 5 Eglinton, Toronto, Canada
 * Bukit Panjang LRT, Singapore

Test tracks
These dedicated lines are used to test compatible rolling stock:


 * Pittsburgh Test Track, USA
 * Kingston Test Track, Canada