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just bought who
Positive Train Control
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CBTC & Traditional Railway Signaling
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International Focus
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CBTC &
Related papers
Safety and Software

Train Control Suppliers

Firm

CBTC &
 Related
Products

Contacts

Train Network Protocol

Train-Wayside
Protocol

Absolute Position Determination Notes
Comments
Alcatel

Seltrac
(pdf)

Kevin Fitzgerald

CAN

RF
 
(open)
IEEE 802.11
Alvarion

IL:
 (proprietary
but based upon LZB & 56 kHz carrier
RF:

AAR
Industry Standard Tag


IL:
Loop Crossover  Loop Crossover 

TASbits
CBTC Technology Newsletter

APTA Paper on CBTC & 802.11

Alstom URBALIS 300
(New technical papers coming soon)

Hervé Navarre

IEEE-1473-L

IEEE-1473-T

WorldFIP

RF:  
(proprietary)


IAGO Microwave
wave guide
Eurobalise
USA: Northeast Corridor ACES

URBALIS:
Unknown
Lausane M2
Singapore NE
Bombardier

CITYFLO* 650
(Select "Rail Control" then "Mass Transit Solutions"

Jeff Stover
(USA)
Joe Baston
(UK)

IEEE-1473

RF:
 (COTS)

Safetran S3 Link

Ethernet Radio

 

Commercial off the Shelf AAR  Industry Standard Tag

First
 RF-CBTC to go in revenue service - SFO
CSEE
(France)
OURAGAN        

Awarded
1 of 3 CBTC contracts for RATP

GE
Global Signaling
CBTC

ITCS

AATC
Jeff
Baker

IEEE-1473-L


RF: 
EPLRS
(
proprietary)
CBTC & AATC:
 Radio Ranging using EPLRS

ITCS:
GPS & Tacho

 

Nippon Signal   Makoto
Yagi

IEEE-1473-L
 (Powerline Overlay)

    CBTC train line  communications subsystem systems for GE
Safetran Systems TBS100

GEO
John
Paljug
IEEE-1473-L
ATCS
RF:  
(COTS)
S3/Link

Ethernet Radio

  Focus is  primarily on US Railroads. 
Siemens
Meteor
SACEM
LZB 80
ETCS
Jean-Pol Mura
+33 1 49 65 74 50


IEEE-1473-T
IEEE-1473-L
(UK's SW Desiro train sets)

 NYCT R-143 (Proprietary)

IL: 
 
(proprietary)
LZB 80
SACEM
Meteor

RF: 
GSM
 (open)
Meteor 
(Air Gap proprietary)

IL:
Loop crossover

RF:
NYCT RF-ID Tag
(proprietary)
Eurobalise (open)

Optical (Meteor RF):

OSMES
(proprietary) 
 Original successful NYCT CBTC trials on Culver Line used
Kasten Chase
RailPath DCS

Technicatome

OURAGAN

Gerard Vautravers
+33 (0) 4.42.60.27.04

     

Awarded
1 of 3 CBTC contracts for RATP

US&S
(Ansaldo)
(Note 1) Denny
Pascoe
IEEE-1473-L      Siemens JV partner on  NYCT
Westinghouse
Signals

(Australia)


Charles
Page
     

News

Westinghouse
Rail Systems

(UK)
TBS100 Mark
Glover
     

"A further software upgrade allows migration to moving block."

Wabtec CBTM

PTC - IDOT
(Comms subcontractor to Lockheed Martin)

Robert
Kull

IEEE-1473-L

IEEE 802.3

CAN

RF:
IEEE 802.11 (open)
ATCS 200 (open)


Proprietary:
DSSS
Mobile Satellite Multiple UHF Data Radios
 

 

Railroad Focus

AAR Standard ECP Brakes 

IEEE-1473-L Brake Watchdog Monitor

Information believed accurate as of March 2004. Please email corrections, updates, or comments to:  Tom Sullivan.  

Please let these firms know you learned about them from TSD.ORG

ABBREVIATIONS:

RF=Radio Frequency; IL=Inductive Loop; RF-ID=Passive Radio Frequency Identification Transponder; OP: Optical 
DCS=Data Communications System (CBTC communications system backbone);

Proprietary =
Typically, only one source. Prices unknown and/or not published. Licensing fees undisclosed. 
Open = Technology and interfaces are open and/or based upon consensus standards such as ANSI/EIA IEEE, etc.
COTS = Commercial Off The Shelf. Published prices (Price is known and the same for everyone.)

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Signal Supplier Score Card

Alcatel Canada's (Formerly ITT SEL) flagship CBTC product Seltrac™ evolved from LZB which means continuous train control. Originally, LZB trackside equipment was developed and manufactured by Alcatel (Germany) under the designation LZB 172. Train based equipment was a joint development of Alcatel and Siemens now designated LZB 80. 

Much like Siemens and Alcatel which jointly developed LZB, Alstom and BTR (British Westinghouse) developed a common Triple Modular Redundant Solid State Interlocking (SSI) architecture under the design guidance of British Rail. The original SSI accepts hot-swappable modules and has been a standard for RailTrack in the UK for years. Older TFMs (Trackside Functional Modules) based upon the original 1 MHz CPU clock are interchangeable between suppliers -- good news for buyers who desire not to be tethered to a single supplier for spares. Unfortunately, newer 2 MHz units are incompatible and not interchangeable.

Ansaldo Signal is the Netherlands holding company for Ansaldo Signalamento Ferroviario in Genoa, Italy;  AT Signal System in Spanga, Sweden;  CSEE Transport in Les Ulis, France; Union Switch & Signal (US&S) in Pittsburgh, PA USA;  and Union Switch & Signal Pty. Ltd., in Brisbane, Australia. Prior to being purchased by Ansaldo, US&S purchased Transcontrol. Ansaldo Signal is a holding company reporting to Italian government-controlled Finmeccanica responsible for maximizing profits in the signaling industry. Ansaldo is no longer a public company. In April 2000, Ansaldo Transporti bought out mostly US stockholder's 4 million shares valuing the company at under $80M. As of mid-1995 Ansaldo does not appear to have a CBTC-based product.

Alstom (formerly GEC Alsthom) purchased French signaling firm Jeumont Schneider in the mid-1970s. In 1998, Alstom purchased SASIB Railway of Italy (which in turn owned the US firm General Railway Signal based in Rochester, NY). In 1998 the original GEC (UK) and Alsthom (France) partnership floated shares on the market to reduce its participation in GEC Alsthom to 24% or less. Formerly called Atlas in the early 1990's, Alstom's latest CBTC technology system is called URBALIS.  URBALIS is comprised of MASTRIA, Automatic Train Control subsystem (trackside and on-board parts) and SMARTLOCK the interlocking component.

SACEM, a fixed-block overlay train control system has its roots in a 1980's development led by RATP for RER. Three firms developed SACEM: (1) CSEE (now part of Ansaldo), (2) Matra Transport (later purchased by Siemens), and (2) Jeumont Schneider (later purchased by GEC Alsthom and later became Alstom). In 1998, French courts denied Matra's claim only it could use the name SACEM. Derivatives of SACEM have since evolved each incorporating changes requested by customers. As a consequence, newer versions of SACEM are all incompatible. The original Algol source code for SACEM remains in the public domain. TSD understands that in 1993 Matra ported its SACEM Algol source code to Ada which has since formed the  basis for the inductive loop CBTC system Siemens now calls Meteor. Siemens' plans to integrate Meteor with a new RF-based Digital Communications System (DCS) for NYCT's Canarsie Line project. We have heard that RATP may hold some intellectual property rights to the Meteor technology. TSD welcomes input, comment, discussion and updates on this subject in its discussion forum.

Bombardier: DaimlerChrysler purchased ABB's share of Adtranz early in 1999. In 2000, DaimlerChrysler sold its Adtranz group to Bombardier and the transaction was completed in April, 2001. Previously, Adtranz was a merger of ABB (Sweden) and Daimler Benz (Germany). Prior to that, ABB purchased AEG Westinghouse (Germany) which in turn had previously purchased the Transportation Division of Westinghouse Electric Corp. (WELCO - US). WELCO provided the train control for SF-BART and Sao Paulo, METRO based upon an advanced failsafe time division multiplex system. CMW Equipmentos based in Brazil is now owned by Alstom. The "W" in CMW came from a prior relationship with Westinghouse Electric Corp. In May of 2004.Bombardier's driverless CBTC product formerly known as Flexiblok was renamed CITYFLO* 650. For operator attended systems the product is CITYFLO* 450.   

GE: In 1999, GE Harris (a 50-50 partnership) purchased Rutherford's Rail Safety Engineering (US) and also Syseca but in 2002 GE sold its Syseca group to ARINC. In September of 2000 GE Harris purchased Harmon and was renamed GE Harris Harmon. In mid-2001, GE purchased its Harris half creating a new GE subdivision known as GE Transportation Systems (GETS). The signaling piece under this group (previously Harmon Industries) is now called "GETS Global Signaling." In the late 1990's, Harmon enhanced and cost-reduced an advanced military radio network system known as EPLRS based upon technology first developed by Hughes Aircraft (which later was sold to Raytheon) for the US Army and Marines. The original Hughes development of EPLRS was completed under a contract for the US Department of Defense that exceed US $500,000,000. Today, GE's EPLRS radio ranging network forms the heart of its Advanced Automatic Train Control System CBTC product now being developed for SF BART. We understand that GE's advanced EPLRS radio network is also sold al a carte.  

Safetran Systems (US) and Westinghouse Signals UK's parent was formerly BTR Rail. In February, 1999 BTR and Siebe merged to form Invensys. With 100,000 employees. Invensys also owns Triconex a manufacturer of non-stop triple modular redundant safety computer systems that are also used with IEEE-1473-L technology to control and monitor nuclear reactors.  

Westinghouse Signals Ltd, Westinghouse Signals Australia, Safetran and Dimetronic have been members of Invensys Rail Systems since BTR merged with Siebe in 1999. In April, 2000 Invensys sold Westinghouse Brakes to Knorr-Bremse. Westinghouse Brake with 600 employees supplies metro and passenger rail brake systems primarily in the UK and Asian markets and freight brake systems to Australian and New Zealand. Knorr-Bremse, headquartered in Munich has 8,000 employees and sells rail braking systems. Invensys Rail's Transmission Based Signalling platform is called TBS100. In January of 2001, Westinghouse Signals reported its TBS100 has been operating reliably in revenue service in Madrid since 1999. Westinghouse states it is based upon an all new platform with open architecture and will provide the maximum resistance to obsolescence of the available platforms today. On July 2,  2001, Westinghouse Signals Ltd, changed its name to Westinghouse Rail Systems, Ltd

For more information about specific CBTC Projects click here 

Please email additions/corrections/updates to Tom Sullivan

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Wireless and Network System Suppliers

Suppliers change their names almost as often as their links -- which make it difficult for tsd.org to keep this table current. Please advise if you know of a better  link or contacts.  Information is believed correct as of July 2004. We normally make corrections/revisions/additions within 1-3 day of being notified. Please let these firms know you found out about them from the tsd.org web site. 

Firm

Contact

Interface
Product #

FCC1
Grantee
Code

FCC1
Product
Code

Carrier Freq.
Modulation
Interfaces

Train Control Affiliations

Related Links / Comments
Alvarion IEEE 802.11 802.11 Alcatel What is IEEE-802.11?
Andrew
(USA)
Obsolete Product

 

Proprietary
Model 2400
KUW

 MDL2400BDR
(Base)
 MDL2400MDR
(Mobile)

2.4 GHz DS SS
RS-530
Bombardier Rest in Peace
Developed: circa 1995
    Obsolete: circa 2002
In service at SFO and soon SEPTA
Cisco Systems Mark Bresnicker Model 3200
 Mobil IP Router
Supports multiple  RF paths using IP  network communications

Versatile and advanced mobile router provides an IP connection using any available RF link from CDPD to IEEE 802.11 

Gestec
(Germany)
Thomas Schneider EasyLon PC/104

IEEE 1473-L

Iinterfaces IEEE-1473-L networks to  industrial PC's using  PC/104. Drivers for for Linux &  Windows. Customers include Alstom, Siemens, DaimlerChrysler

GE-TS
Global SIgnaling
(USA)
Patrick McKenna Proprietary
EPLRS

  2.4 GHz DS SS 

IEEE 1473-L (and FTT-10 powerline technology for physical layer for trainline
GE

Radio Ranging DCS developed by Hughes for US military. Hughes sold technology to Raytheon. Harmon purchased technology for  rail applications. GE purchased Harmon

EKE
(
Finland)
Anssi Laakkonen NA

 IEEE 1473-L to IEEE-1473-T gateway

MicroSym
(Canada)
Greg Neff A-190
Tunneling Router

1WJ

Packet Tunnel Engine IEEE 1473-L related products  

Tunneling Router tunnels  IEEE-1473-L   through T1, T3, WorldFIP, etc.

Nexterna
(USA)
Tom
Vaiskunas
ATCS 200   900 MHz
GMSK
RS-422 and RS232
 

Owned by  Union Pacific Railway.  Formerly, AMCI.

Rail Transit Consultants

IEEE-1473-L Network and Systems for rail Vehicles

Safetran
Systems
(USA)

COTS
R Link
S3 Link
2HF   2.4 GHz
DS SS
IEEE 1473-L
Bombardier
CITYFLO 450 and 650
I/O Modules
See Note 2
S2TE
Bruno Guillaumin REKA120 2400 MHz ISM Band
DBPSK
1.6 Mbps data rates!
Uses advanced RAKE technology to combine multipath signals 
Siemens Transportation Systems Jon Bader  

QSCWAYSIDE

QSCCARBORNE

2.4 GHz
DS SS
IP & IEEE 1473-L for NYCT 
Siemens 

Developing a DCS using a DS-SS radio tested at RATP that is expected to be similar to RailPath

Siemens
(Germany)
Wolfgang Roessle GPRS     GPRS
IEEE-1473-T 
ETCS General Packet Radio System
SpringBoard
(Canada)

John McCormick

IP-based
RailPath
    2.4 GHz
DS SS
IP based
Formerly 
Alcatel 
Alstom
Siemens

DCS demonstrated during successful NYCT CBTC Culver trials in 1999. Now looking to license technology to others

SmooComm Rob Grossenbacher 7805-10

IEEE 1473-L
ANSI EIA 709
-

Routers for IEEE-1473-L and rail transit applications

ABBREVIATIONS


SS= Spread Spectrum   IEEE 1473-L (LonWorks) IEEE-1473-T (TCN)

Please email additions/corrections or related links to Tom Sullivan

NOTES

  1. For detailed radio information, such as manuals and photos submitted by the vendor to the FCC,  click on  FCC Licensing Information and enter the specified values for "Grantee Code" and "Equipment Product Code". Some radios in this column are still under development.
  2. Andrew's Model 2400 DSSS radio was developed for Bombardier and intended for use both in free space (above ground) and with a lossy line in subways. It had a lifetime of approximately 6 years before becoming obsolete. Estimated cost was >$20000/radio. 
    Bombardier has since switched to Safetran's commercial off the shelf S3/Link radio which sells for about US $1500/radio. Like the Andrews radio Safetran's S3 link has an IEEE-1473 (LonWorks) interface.

Contrawound Toridial Helical Antenna Technology

This link refers to new and interesting antenna technology. It may be great for subways where there is limited clearance:

Please email additions/corrections to Tom Sullivan

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Consultants
Click on Consulting Firm to view firm's web page. Click on Contact to send an email message.

Please tell these firms you found them on tsd.org.

Firm

Contact CBTC / Other Relevant Expertise
ACEx Ray Louis Communications; data networking IEEE/1473-L (LonWorks) routers
ARINC Audrey Strathmeyer RF and network systems for Air, Rail, and Transit systems
Battelle Jon Luedeke Safety analysis of train control systems
ARUP Naor Wallach Architectural Engineering Firm - 45% in Rail Market inc. Train Control
Booz Allen & Hamilton Mick McDonald Advanced Train Control and Transportation Systems
Communication Architecture Ron Lindsey Railroad RF data communications. Publishes "Full Spectrum "
Critical Link John Fayos RF data communications; embedded real-time systems design
HCRQ System Safety  Emmett McCain Safety-critical systems, software safety
Grappone Technologies, Inc. Victor Grappone Train Control and Broken Rail Detection systems
Group Alpha, Inc.   IEEE 1473-L design & interfacing
Innovation Ron Tolmei Train Control and Electronic Systems
Parsons Transportation Group Alan Rumsey Lead consultant on NYCT's CBTC Canarsie Line Project
PB Transit & Rail Systems Harvey Glickenstein Power, Signals, Communications and Transit Vehicles
Lea + Elliott Wade Scott   Automated People Movers & Train Control systems
Rail Transit Consultants Rick Lerew Vehicle systems design & integration. Experienced with IEEE-1473-L
Transportation Systems Design Tom Sullivan Systems and network architecture, US standards, instruction/teaching
LTK Engineering Services Jim Dietz Vehicles and rail transit systems design
Semaly Herve Cugnet 20 yrs transit experience with advanced technology Train Control
Signal Innovations John Cipollone Innovative signaling and train control technology for railroads transit. 
STV, Inc. Tom Spearing Rail Transit Vehicle Systems, Rail Transit Standards
Systra Consulting   Power, Signals, CBTC & Train Control Systems
TJMPE Tom McGean Automated People Movers and Rail Standards 
Turner Engineering Company David Turner Engineering system design and safety analysis of rail transit vehicles
West Bridge Consultants John Selke CBTC expertise & software development.  See also: www.tsd.org/about

Please email additions/corrections to Tom Sullivan. If you contact any of the above individuals, please tell them you found them via the TSD.ORG website.

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Conferences

May 3-4, 2005, Washington, DC 
Held every two years this is the biggest CBTC conference in the world. Don't miss it!

Please advise Tom Sullivan if you know of a conference or relevant link that may be of interest to others.

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Technical Links

Special Mention

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Transportation Systems Design, Inc. - www.tsd.org
6543 Girvin Drive, Oakland, CA 94611 Voice: +1 (510) 531.8411 Fax: +1 (510) 531.7372

Revised: 01 Apr 2005