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| image2 = Shenzhenmetro cityflo650.jpg
| image2 = Shenzhenmetro cityflo650.jpg
| alt2 = Source: Bombardier Transportation for Wikimedia Commons. Author: Supinas Sumrianrum
| alt2 = Source: Bombardier Transportation for Wikimedia Commons. Author: Supinas Sumrianrum
| caption2 = [http://www.bombardier.com/en/transportation/products-services/rail-control-solutions/mass-transit-solutions/cityflo-650?docID=0901260d8001264d '''''CITYFLO''''' '''650'''] equipped train in Shenzhen Metro Line 3, China
| caption2 = ''CITYFLO'' 650 equipped train in Shenzhen Metro Line 3, China
| image3 = AirTrain SFO tracks.jpg
| image3 = AirTrain SFO tracks.jpg
| alt3 = Source: Wikimedia Commons. Author: Jef Poskanzer
| alt3 = Source: Wikimedia Commons. Author: Jef Poskanzer
| caption3 = [http://www.bombardier.com/en/transportation/products-services/rail-control-solutions/mass-transit-solutions/cityflo-650?docID=0901260d8001264d '''''CITYFLO''''' '''650'''] [[Communication-based train control|CBTC]] APM
| caption3 = ''CITYFLO'' 650 [[Communication-based train control|CBTC]] APM in San Francisco, first radio-based [[Communication-based train control|CBTC]] system deployed in the world.
}}
}}


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| [http://en.wikipedia.org/wiki/Guangzhou_Metro Guangzhou Metro] || [http://en.wikipedia.org/wiki/Zhujiang_New_Town_Automated_People_Mover_System Pearl River Line APM] || <center>2010</center> || <center>4</center> || <center>14</center> || Greenfield, DTO
| [http://en.wikipedia.org/wiki/Guangzhou_Metro Guangzhou Metro] || [http://en.wikipedia.org/wiki/Zhujiang_New_Town_Automated_People_Mover_System Pearl River Line APM] || <center>2010</center> || <center>4</center> || <center>14</center> || Greenfield, DTO
|-
|-
| [http://en.wikipedia.org/wiki/London_Gatwick London Gatwick Airport] || [http://en.wikipedia.org/wiki/Gatwick_Airport#Terminal_trans fer Terminal Transfer APM] || <center>2010</center> || <center>1</center> || <center>6</center> || Brownfield, UTO
| [http://en.wikipedia.org/wiki/London_Gatwick London Gatwick Airport] || [http://en.wikipedia.org/wiki/Gatwick_Airport#Terminal_transfer Terminal Transfer APM] || <center>2010</center> || <center>1</center> || <center>6</center> || Brownfield, UTO
|-
|-
| [http://en.wikipedia.org/wiki/Yongin Yongin] || [http://en.wikipedia.org/wiki/EverLine_Rapid_Transit_System EverLine ART] || <center>2011</center> || <center>19</center> || <center>30</center> || UTO
| [http://en.wikipedia.org/wiki/Yongin Yongin] || [http://en.wikipedia.org/wiki/EverLine_Rapid_Transit_System EverLine ART] || <center>2011</center> || <center>19</center> || <center>30</center> || UTO

Revision as of 14:40, 12 August 2011

CITYFLO 650
Company typeRadio-based true moving block CBTC railway signalling system
IndustryRail signalling
HeadquartersBOMBARDIER Transportation Rail Control Solutions. Årstaänsvägen 29, Stockholm, Sweden
WebsiteCITYFLO 650 CBTC system


The BOMBARDIER´s CITYFLO 650 signalling solution is a state-of-the-art CBTC system making use of bi-directional radio communication between trains and wayside equipment, as well as true moving block technology to control the operation. Trains report their position via radio and the wayside signalling system provides movement authorities to the trains via the radio link. This means that train detection equipment (i.e. track circuits and axle counters) and optical signals are not actually required. This may reduce the cost of the equipment and maintenance needs.[1]

Level of automation

Source and author: Image by Bombardier Transportation for Wikimedia Commons
Level of automation (GoA as per IEC 62290-1) of the CITYFLO 650 CBTC system

CITYFLO 650 CBTC system supports all levels of automation or Grades of Automation (GoA), as defined and classified in the IEC 62290-1.[2] CITYFLO 650 can be applied to all types of system ranging from Automated People Movers (APM) to complex mass transit heavy metros. This CBTC system supports a wide range of ATP and ATO automation levels in accordance with with the mentioned standard. These go from manual protected operation, GoA 1 (usually applied as a fallback operation mode) to fully automated operation, GoA 4 (Unattended Train Operation, UTO). Intermediate operation modes comprise semi-automated GoA 2 (Semi-automated Operation Mode, STO) and driverless GoA 3 (Driverless Train Operation, DTO).[1][3] . Additionally, the system is able to support a conventional signalling system underlay as well. In this case, non-communicating trains (for instance non-equipped maintenance vehicles or legacy-equipped trains) can be detected via conventional track circuits or axle counters, and run in accordance with optical signals while CBTC communicating trains will run at minimum distance according to the moving block principles. This minimises the interval between trains (headway) and the impact to the existing traffic eliminating any possibility of disruption. This is called mixed mode operation.[4]

Architecture overview

The CITYFLO 650 solution comprises several subsystems for both wayside and onboard equipment. All these components are highly integrated in order to provide a safe, reliable and operation-efficient signalling system with high availability. The typical CITYFLO 650 CBTC system has three main sub-systems:

  • Wayside equipment: ATS control centre, computer based interlocking system (CBI) and Region ATP (RATP), communicated by a redundant, fault-tolerant communication network (also referred to as Data Transmission System, DTS).
  • Onboard equipment: Vehicle ATC (VATC) including both trainborne ATP and ATO subsystems.
  • TWC: Train to Wayside Communication system, based on radio frequency link.


Source and author: Bombardier Transportation for Wikimedia Commons
Illustration of a typical CITYFLO 650 CBTC architecture]. Technical solution may differ depending on the customer requirements and the project scope.


Applications and projects

Source: Bombardier Transportation for Wikimedia Commons. Author: Antonio Munoz
CBTC deployment in Metro de Madrid, Spain
Source: Bombardier Transportation for Wikimedia Commons. Author: Supinas Sumrianrum
CITYFLO 650 equipped train in Shenzhen Metro Line 3, China
Source: Wikimedia Commons. Author: Jef Poskanzer
CITYFLO 650 CBTC APM in San Francisco, first radio-based CBTC system deployed in the world.
World´s busiest metros and APMs are choosing radio-based CBTC systems to improve the operation (in the images, three examples of rail lines equipped with the BOMBARDIER´s CBTC solution, CITYFLO 650])
BOMBARDIER´s CITYFLO 650 CBTC project list around the world (July 2011).[5]
Location Line/System Commissioning Km No. of trains Comments
San Francisco Airport AirTrain APM
2003
5
38
 Greenfield, UTO
Seattle-Tacoma Airport Satellite Transit System APM
2003
3
22
 Brownfield, UTO
Dallas-Fortworth Airport DFW Skylink APM
2005
10
64
 Greenfield, UTO
Metro de Madrid 1, 6
2008
48
124
 Brownfield, STO
Las Vegas-McCarran Airport McCarran Airport APM
2008
2
6
 Brownfield, UTO
London Heathrow Airport Heathrow APM
2008
1
9
 Greenfield, UTO
Taipei Metro Neihu-Mucha
2010
15
176
 Greenfield and Brownfield, UTO
Philadelphia SEPTA Light Rail Green Line
2010
8
115
 STO
Guangzhou Metro Pearl River Line APM
2010
4
14
 Greenfield, DTO
London Gatwick Airport Terminal Transfer APM
2010
1
6
 Brownfield, UTO
Yongin EverLine ART
2011
19
30
 UTO
Shenzhen Metro 3
2011
40
50
 STO
Tianjin Metro 2, 3
2011
52
50
 STO
Sacramento International Airport Sacramento APM
2011
0,5
2
 Greenfield, UTO
Phoenix Sky Harbor Airport PHX Sky Train
2012
4
9
 Greenfield, UTO
Riyadh KAFD Monorail
2012
4
12
 Greenfield, UTO
Sao Paulo Metro Tiradentes Monorail Extension Line 2
2014
24
54
 Greenfield, DTO
Jeddah Airport King Abdulaziz APM
2014
2
10
 Greenfield, UTO
London Underground SSR Lines: Metropolitan, District, Circle, Hammersmith&City
2018
310
240
 Brownfield, STO

References

  1. ^ a b Semi-automatic, driverless, and unattended operation of trains .[1] IRSE-ITC, 2010. Accessed through www.irse-itc.net in June2011
  2. ^ IEC 62290-1, Railway applications - Urban guided transport management and command/control systems - Part 1: System principles and fundamental concepts.[2] IEC, 2006. Accessed June 2011
  3. ^ Communication-based train control. From Wikipedia August 2011
  4. ^ CITYFLO 650 Metro de Madrid, Solving the capacity challenge.[3] Bombardier Transportation Rail Control Solutions, 2010. Accessed June 2011
  5. ^ CITYFLO 650 CBTC Moving Block Mass Transit system.[4] Bombardier Transportation Rail Control Solutions, 2010. Accessed June 2011
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