1. Amtrak Advanced Civil Speed Enforcement PTC System Status Report
May 2001
Amtrak Advanced Civil Speed Enforcement PTC System Status Report
Jim Hoelscher

2. ACSES
CBTC Conference 2001

3. Advanced Civil Speed Enforcement System Northeast Corridor
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

4. 460 Locomotives & Commuter Trains
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

5. Overlays the Cab Signal System Independent of Cab Signal
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

6. Trainborne Equipment Advanced Display Unit Radio Antenna ACSES
Vital on-board Computer
Axle generator
Transponder
Reader and
CTV box
CBTC Conference 2001

7. ADU Signal Aspect Cab Signal Speed Limit Enforcement Indicator
Civil Speed Limit
CBTC Conference 2001

8. Transponders Operates to 310 MPH Passive - No wiring
Transponder data contained in Programmable plug
Operates to 310 MPH
Passive - No wiring
CBTC Conference 2001

9. Transponder Operation On board antenna transmits 27.115 MHz signal
ACSES PTC Overview
Transponder Operation
On board antenna transmits 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 bits data, 72 bits CRC + 3 fill bits
CBTC Conference 2001

10. Location of Transponder (RR, Line, MP, Track,)
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

11. Transponder Data (Cont.) Distance to Home Signal Grade
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

12. ATCS 200 Radio Network Data Interlocking Home Signal Status
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

13. ACSES Speed Restrictions
80 mph
60 mph
100 mph
Curves, Bridges, etc.
CBTC Conference 2001

14. ACSES Positive Train Stop
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
Target Speed = 0
Vital
Encoder
Radio DS HS
CBTC Conference 2001

15. ACSES PTC Phase I Phase II Civil Speed Enforcement
Home Signal Stop Enforcement (PTS)
Phase II
Radio Release PTS
Temporary Speed Restriction - On Board Enforcement
CBTC Conference 2001

16. ACSES PTC Phase I Status
R. I. / Mass.
190.8
Boston
Cove
228.0
Conn./ R.I.
141.1
Junction
214.0
New Haven
High Street
139.0
Nan
113.3
In Service Dates
May, 2001
December 10, 2000
Mill River
73.8
CBTC Conference 2001

17. ACSES PTC Phase I Status
NJ/NYC
1.2
Pa./N.J.
57.7
Maryland/Delaware
41.4
Ham
55.5
Holmes
77.2
County
32.8
Delaware/Pa.
18.2
Morris
58.3
Washington, D.C.
Ragan
29.7
Maryland
Prince
57.3
131.6
Grove
112.4
In Service Dates
June 30, 2001
Not Scheduled
March 26, 2001
Landover
128.8
CBTC Conference 2001

18. 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

19. 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

20. 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

21. 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

22. ACSES PTC Phase II To CETC Network server - 1 TSR server
2oo3
Safety server
TSR server
Network server - 1
To CETC
Network server - 2
HUB 1
HUB 2
NMS
WCC / FPD 1
WCC / FPD 2
1 of 10
1 of 10
Multiplexer
Multiplexer
Multiplexer
Multiplexer
1 of 4/5
1 of 4/5
DSU
DSU
DSU
DSU
A/B switch
Modem
DSP 9600
BCP
Modem
Modem
Encoder
Encoder
MCP
Train

23. 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

24. 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

25. ACSES PTC Phase II Schedule
Phased implementation
PTS Radio release
TSR enforcement
To be completed 2002
CBTC Conference 2001

26. PTC Interoperability NJT ASES Equipment Compatible transponders
Standard antenna/transponder interface
System
Transponder messages defined by Amtrak/NJT
CBTC Conference 2001

27. Provides functionality desired
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