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