CITYFLO 650 – Seattle-Tacoma International Airport, USA

In operation since 1973, Sea-Tac's existing signalling system was replaced by a Bombardier CITYFLO 650 solution.

The CITYFLO 650 solution supplied includes the EBI Com radio block centre, EBI Cab ATC onboard equipment and the EBI Screen control room and supervisory system.

Other improvements include upgrades to central control, power distribution and other equipment. Using the Bombardier CITYFLO 650 overlay capability, full passenger service was maintained during the November 2003 completion of the replacement and upgrade program.

In total, this driverless system covers 3 km of track with up to 22 vehicles passing through 8 stations.