Bombardier's pioneering advances in communications-based train control (CBTC) systems are supporting system optimization and upgrades globally providing a new dimension in overlay capability and tackling the capacity challenge. These systems can be deployed quickly, allowing some of the world’s largest cities to meet their transportation needs – rapidly and reliably.
CBTC benefits include:
Bombardier Transportation has introduced CBTC as part of its CITYFLO 450 and 650 signalling solutions for conventional metros, as well as for its automated people mover (APM), advanced rapid transit (ART) and monorail systems. CITYFLO 450 is our mature, cost-effective solution while CITYFLO 650 is our full-feature, cutting-edge solution designed for the railways of the future.
One of the major challenges faced by mass transit operators today is that of upgrading systems to increase capacity and reduce headways on existing lines while maintaining existing services for their customers. For most transport authorities, disrupting passenger services to re-signal a line is not a viable option. Capacity demands coupled with continued advances in computer technology and the implementation of new standards while desirable for system safety and modernization, are accelerating obsolescence which further drives the need for upgrades.
By creating a continuous bi-directional communications link between wayside and onboard equipment, CBTC provides many advantages. There is no need for any physical vehicle detection system such as track circuits or axle counters which reduces the overall wayside equipment required and eliminates additional maintenance costs. In addition, the unique features of Bombardier's CBTC solution means it can be used as an overlay system which results in no disruption to passenger services during migration and upgrades.
Since the early 1990s, Bombardier Transportation has been at the forefront of advances in CBTC. Bombardier's CBTC solutions use a moving block (CITYFLO 650) or virtual block (CITYFLO 450) operation that allows trains to run closer to each other compared to a fixed block system and reduces the headway between vehicles while increasing safety.
Bombardier’s CBTC system can operate in driver, driverless or completely unattended modes. The system can be upgraded from driver to driverless mode, should requirements change. Its state-of-the-art features include:
The CBTC system architecture includes EBI Screen automatic train supervision (ATS) which offers the following features:
All the elements that make up the wayside signalling infrastructure play a vital role in system optimization and passenger safety.
The EBI Com radio block centre (RBC) continuously receives train positioning data via radio signal, processes it and sends it to a track plan system which clearly shows the exact position of each train.
The system communication network provides a private, secure and redundant communications path between the wayside and the onboard ATC equipment. The transmission of this data is made possible by the use of both the fibre-optic transmission system and the radio equipment. EBI Link ATC wayside equipment utilizes passive tags containing location data. EBI Link tags are used for the re-normalisation of the train’s accumulated position error.
Bombardier Transportation has a full range of EBI Switch point machines, some of which can be positioned within sleepers or the recesses of the rails providing an undetectable finish at street level. EBI Switch point machines are designed to provide increased availability on the rail network and cost-effective maintenance of the complete turnout.
The CITYFLO 450 CBTC solution includes the EBI Lock computer-based interlocking (CBI). The interlocking systems receive route-setting commands from the traffic management centre and then, safely lock the route ahead of the train, releasing it after the train passes. The EBI Lock supervises and controls wayside objects such as signals, point machines, balises and level crossing protection.
The CITYFLO 650 system for driverless (DTO) or unattended (UTO) train operations is designed for moving block advanced metro operations and automated people movers (APM). Track-to-train communication is achieved via state-of-the-art wireless technology to provide bi-directional communication. The system is used for automatic running of trains on segregated tracks. With its pioneering advances in communications-based train control (CBTC) solutions, Bombardier supports system optimization and upgrade, provides a new dimension in overlay capability and tackles the capacity challenge. The CITYFLO 650 system is operational or in delivery on 40 lines worldwide.
The CITYFLO 650 system permits shorter, more consistent headways due to its simple, reliable contactless TWC systems. It also meets the following industry standards: designed and certiﬁed to CENELEC-speciﬁc, non-IEC electrical standards: EN 50121, EN 50155, EN 50128 and other relevant EN standards; and is compliant with IEEE 1474 CBTC standards.
The ATO system fully exploits potential capacity as the train travels at a safe distance from other trains. It reduces energy consumption and wear on track and vehicles. The ATO system provides precision stopping at platforms, automatic door operation and automatic turnback at terminals.
The CITYFLO 650 system’s driverless moving block technology provides ﬂexible headways as standard with the capability to change headways dynamically. System updates can be easily managed and safely distributed remotely to trains anywhere in the CBTC network which is critical for the update of large ﬂeets. The solution offers tailored after-sales support and training. Modiﬁcations such as system expansion or track alterations are easily incorporated.
The CITYFLO 650 solution is cost-effective to install and eliminates wayside equipment due to its simple and reliable contactless TWC systems.
The INNOVIA APM 200 automated people mover system, with CITYFLO 650 rail control, at Dallas/Fort Worth International Airport, supplied by Bombardier Transportation, opened in May 2005. When it opened, the ‘Skylink’ was the largest airport people mover system in the world.
Shenzhen Metro Line 3 Phase One, equipped with CITYFLO 650 rail control, was delivered in only 22 months to start service in 2011.
Bombardier is delivering its automated CITYFLO 650 rail control technology for Delhi Metro Line 7; phase one entered service in March 2018.
Bombardier's CITYFLO 650 CBTC solution has increased capacity on Metro Madrid Lines 1 and 6 by 30% since implementation.
Our second signalling contract with São Paulo Metro.
Bombardier Transportation is delivering its game-changing fully automated INNOVIA Monorail 300 system, equipped with CITYFLO 650 rail control, for the new King Abdullah Financial District in Riyadh, Kingdom of Saudi Arabia.
Bombardier is delivering its driverless CITYFLO 650 solution for the Istanbul Metro.
Bombardier's CITYFLO 650 solution is operating on the automated Line 1 of the Klang Valley Mass Rapid Transit network and in delivery for Line 2.
Bombardier Transportation delivered an INNOVIA APM 300 automated people mover system,with CITYFLO 650 rail control, to Munich Airport.
Bombardier Transportation delivered the INNOVIA APM 200 automated people mover system, with CITYFLO 650 rail control, at Phoenix Sky Harbor International Airport in 2013.
Bombardier designed and supplied the electrical and mechanical systems for the Neihu Line – an extension of the existing Taipei Metro Line 1.
The CITYFLO 450 solution is a communication-based train control (CBTC) virtual block system designed for metros with drivers. The system is used for virtual block semi-automatic running of trains (STO) on segregated tracks and has the potential for upgrading to a driverless system.
Inexpensive to install, the CITYFLO 450 solution eliminates wayside equipment due to its simple, reliable, contactless train-to-wayside communications system, permitting shorter, more consistent headways. The CITYFLO 450 system is based on the successful CITYFLO 350 platform. The EBI Cab onboard ATP ensures that the train does not exceed the permitted speeds or pass beyond the end of a movement authority.
The EBI Drive semi-automatic train operation (ATO) system which is part of the EBI Cab onboard equipment, fully optimizes the capacity of the system as the train proceeds along the line at a safe distance from other trains. The ATO ensures smooth braking and acceleration resulting in energy savings and less wear and tear. It also provides precision stopping at platforms with high accuracy and automatic door operation. In semi-automatic mode, an operator may initiate station departures and close doors. The CITYFLO 450 system uses the EBI Screen control room to give the metro operator total overview and control of the traffic.
Since train-to-wayside communication (TWC) is provided via two-way radio, the CITYFLO 450 system can be used as an overlay radio-based train control system to upgrade existing ﬁxed block systems.
For 100 years, Bombardier has been developing, engineering and installing advanced rail control systems. Every day, Bombardier's CBTC systems move millions of people, all around the world.
Bombardier has been leading the way in CBTC technology for over 40 years since the implementation of the ﬁrst fully automated steel-wheel system for the Bay Area Rapid Transit (BART) system in San Francisco in 1972. Thirty years later, Bombardier repeated its groundbreaking success in this state as the ﬁrst moving block CBTC system was installed at San Francisco Airport in 2003.
Spain’s Metro de Madrid network is one of the largest and busiest in Europe transporting over 630 million passengers a year, with a maximum achieved ridership of 2.5 million passengers per day. Bombardier was awarded the contract to install the CITYFLO 650 moving block CBTC system to increase capacity through reduced headways. The capacity of the Metro de Madrid’s Lines 1 and 6 has almost doubled since the introduction of Bombardier’s CBTC solution.
Bombardier’s CITYFLO 650 driverless CBTC system has successfully been in effect for over a decade on the dual-track fully automated Neihu Rapid Transit Line in Taipei, Taiwan. In parallel to a route upgrade and overlay equipment, there is reduced energy through shorter headways and wear and tear on the track and the vehicles, continually improving capacity and reliability for the capital city Taipei.
Our turnkey CITYFLO 650 solution is being delivered for line 5 of the São Paulo metro, enabling safety with a short 75-second headway. It will be installed on 8.4 km of line with six stations, plus the extension of the line by 11.6 km with 11 new stations and a total of 34 new trains. In addition, CITYFLO 650 is also being installed for the new São Paulo monorail Expresso Tiradentes.
Our CITYFLO 650 CBTC system is installed on 51 km of track to provide better access to the city centre and increased connectivity across Kuala Lumpur. Line 2 adds a further 52.2 km of track, 58 trains and nine new maintenance vehicles. One control centre with full back-up will manage all KVMRT Lines.
Delhi Metro Rail Corporation (DMRC) has awarded Bombardier a contract to supply CBTC for line 7, the city’s ﬁrst driverless metro line. The 58.3 km line will link all existing lines with no fewer than 10 interchanges, easing the pressure on existing hubs by offering alternative routes across the city that avoid the most congested stations.
CITYFLO 650 is our cutting-edge CBTC solution designed for the railways of the future. It tackles the rail capacity challenge by giving operators the flexibility to safely and dynamically optimise headways.