amtrak advanced civil speed enforcement ptc system status...
TRANSCRIPT
Amtrak Advanced Civil Speed
Enforcement PTC System
Status Report
Jim Hoelscher
May 2001
ACSES
CBTC Conference 2001
ACSES PTC Overview
Advanced Civil Speed Enforcement System
Northeast Corridor
240 Route Mi./ 506 Track Mi.
– Plan 400 route miles/ 1150 Track miles
48 Interlockings
– Plan ~ 100 interlockings
CBTC Conference 2001
ACSES PTC Overview
460 Locomotives & Commuter Trains
– AEM 7, F40PH2, GP40, GP9, U23B, B23-7, GP 38,
GE Super 7, MP 15, F40
– Kawasaki, MBB, & Bombardier Control Coaches
– High Speed Locomotives
– ACELA High Speed Tilt Trains
CBTC Conference 2001
ACSES PTC Overview
Overlays the Cab Signal System
Independent of Cab Signal
Cab Signal Provides Speed Limit for Safe Train
Separation and Signal Speed Enforcement
ACSES Provides Civil (Track) Speed Limit and
Positive Train Stop at Interlocking Home signals
CBTC Conference 2001
Trainborne Equipment
Advanced Display Unit
Transponder
Reader and
CTV box
ACSES
Vital on-board Computer
Axle generator
Radio Antenna
CBTC Conference 2001
ADU
CBTC Conference 2001
Cab Signal
Speed Limit
Civil Speed
Limit
Enforcement
Indicator
Signal Aspect
Transponders
Transponder data contained in Programmable plug
• Operates to 310 MPH • Passive - No wiring
CBTC Conference 2001
ACSES PTC Overview
Transponder Operation
– On board antenna transmits 27.115 MHz signal
– Wayside transponder receives signal + Uses
energy in received signal to power transmitter
– Transponder transmits 4.5 MHz data signal
– Message contains 255 bits - 180 bits data, 72 bits
CRC + 3 fill bits
CBTC Conference 2001
ACSES PTC Overview
Transponder Data
– Location of Transponder (RR, Line, MP, Track,)
– Distance to Next Transponder
– Current Civil Speed for 5 Train Types
– Distance to Speed Restriction
– Speed Restriction Speed Limit For 5 Train Types
– Length of Speed Restriction
CBTC Conference 2001
ACSES PTC Overview
Transponder Data (Cont.)
– Distance to Home Signal
– Grade
– Local ATCS Radio Address and Frequency
– Phase/Power Break Start/Stop Locations
CBTC Conference 2001
ACSES PTC Overview
ATCS 200 Radio Network Data
– Interlocking Home Signal Status
– Interlocking Exit Track
– Start/Stop Location of Temporary Speed
Restriction
– Temporary Speed Limits for Passenger and
Freight
CBTC Conference 2001
ACSES Speed Restrictions
80 mph
60 mph
100 mph
Curves, Bridges, etc.
CBTC Conference 2001
ACSES Positive Train Stop
Target Speed = 0
Vital
Encoder
Radio DS HS
•Transponder sets stop point at Home signal
•PTS enforced if Cab signal not better than restricting
•Released by radio if the Home Signal not at Stop
•Train civil speed limit through the interlocking is sent
by radio
CBTC Conference 2001
ACSES PTC
Phase I
– Civil Speed Enforcement
– Home Signal Stop Enforcement (PTS)
Phase II
– Radio Release PTS
– Temporary Speed Restriction - On Board
Enforcement
CBTC Conference 2001
ACSES PTC Phase I Status
Boston
Cove 228.0
New
Haven
Mill River 73.8
Nan 113.3
High Street 139.0
Junction 214.0
Conn./ R.I. 141.1
R. I. / Mass. 190.8
In Service Dates
May, 2001
May, 2001
December 10, 2000
May, 2001
CBTC Conference 2001
ACSES PTC Phase I Status
NJ/NYC 1.2
Washington,
D.C.
Holmes 77.2
Landover 128.8
Grove 112.4
Prince 57.3
Morris 58.3
Maryland/Delaware 41.4
Pa./N.J. 57.7
In Service Dates
June 30, 2001
Not Scheduled
March 26, 2001
Ragan 29.7
County 32.8
Ham 55.5
131.6 Maryland
Delaware/Pa. 18.2
CBTC Conference 2001
ACSES PTC Phase I Status
On-board equipment installed & ready for (or in)
service (241 Units)
– 77 Amtrak
– 74 MBTA
– 24 CSX
– 16 P & W
– 14 CDOT
– 12 High Speed Locomotives
– 24 Acela
CBTC Conference 2001
ACSES PTC Implementation
Standard Interfaces designed to allow
application of ACSES on different locomotives
and control cars
– Cab Signals Systems
– Air Brake Interface
– Locomotive Controls
CBTC Conference 2001
ACSES PTC Phase I Operation
Infrastructure Data Must be Accurate
– Curve Speeds & Locations
– Chaining data
Operation Problems
– No problems with transponders
– Operator’s learning curve
– Brake Curves conservative
– No Time to Penalty or Brake curve information given
to operator
CBTC Conference 2001
ACSES PTC Phase I Operation
System Modifications
– Expand wheel size calibration range
– Redefine actions requiring operator
acknowledgement
– Modify Tilt Enable/Disable
– Energize ACSES magnet valve when cutout
CBTC Conference 2001
MCP
To CETC 2oo3
Safety server
TSR server
WCC / FPD
1
Multiplexer Multiplexer
BCP
WCC / FPD
2
Multiplexer Multiplexer
DSU
DSU DSU
DSU
Encoder Encoder Train
Network server - 1
Network server - 2
1 of 4/5 1 of 4/5
Modem
DSP 9600
A/B switch
Modem
1 of 10 1 of 10
HUB 1 NMS
Modem
HUB 2
ACSES PTC Phase II
ACSES PTC Phase II Operation
Temporary speed restrictions (TSR) by CETC
operators
– Current process retained
– Paper copies and/or voice radio updates
TSRs transmitted to trains in terms of radio
coverage areas
– Train receives all TSRs in direction of travel for
current plus next 2 radio coverage areas
TSRs enforced by onboard equipment the same
as permanent speed restrictions received from
transponders
CBTC Conference 2001
ACSES PTC Phase II Status
BCPs delivered
– Antenna sites being determined
Encoders delivered
– Site specific logic design started
TSR Input Process & Interface with CETC
operators defined
Office servers and communications network
designed
OBC requirements defined
CBTC Conference 2001
ACSES PTC Phase II Schedule
Phased implementation
– PTS Radio release
– TSR enforcement
To be completed 2002
CBTC Conference 2001
PTC Interoperability
NJT ASES
– Equipment
• Compatible transponders
• Standard antenna/transponder interface
– System
• Transponder messages defined by Amtrak/NJT
CBTC Conference 2001
Conclusion
In service
– 75 Mile section - December 10, 2000
– 22 Mile section - March 26, 2001
Provides functionality desired
Operators are learning the conservative nature
of the brake curves
Input from operators is being used to modify
system operation
ACSES + Cab signal provides civil speed, train
separation and signal speed enforcement
CBTC Conference 2001
