amtrak advanced civil speed enforcement ptc system status report jim hoelscher may 2001

Amtrak Advanced Civil Speed Enforcement PTC System Status Report

Jim Hoelscher

May 2001May 2001

ACSESACSES

CBTC Conference 2001

ACSES PTC OverviewACSES PTC Overview

Advanced Civil Speed Enforcement SystemAdvanced Civil Speed Enforcement System

Northeast CorridorNortheast Corridor

240 Route Mi./ 506 Track Mi. 240 Route Mi./ 506 Track Mi.

– Plan 400 route miles/ 1150 Track milesPlan 400 route miles/ 1150 Track miles

48 Interlockings48 Interlockings

– Plan ~ 100 interlockingsPlan ~ 100 interlockings

CBTC Conference 2001CBTC Conference 2001


460 Locomotives & Commuter Trains460 Locomotives & Commuter Trains

– AEM 7, F40PH2, GP40, GP9, U23B, B23-7, GP 38, AEM 7, F40PH2, GP40, GP9, U23B, B23-7, GP 38,

GE Super 7, MP 15, F40 GE Super 7, MP 15, F40

– Kawasaki, MBB, & Bombardier Control CoachesKawasaki, MBB, & Bombardier Control Coaches

– High Speed LocomotivesHigh Speed Locomotives

– ACELA High Speed Tilt TrainsACELA High Speed Tilt Trains



Overlays the Cab Signal SystemOverlays the Cab Signal System

Independent of Cab SignalIndependent of Cab Signal

Cab Signal Provides Speed Limit for Safe Train Cab Signal Provides Speed Limit for Safe Train

Separation and Signal Speed EnforcementSeparation and Signal Speed Enforcement

ACSES Provides Civil (Track) Speed Limit and ACSES Provides Civil (Track) Speed Limit and

Positive Train Stop at Interlocking Home Positive Train Stop at Interlocking Home

signals signals


Trainborne EquipmentTrainborne Equipment

Advanced Display UnitAdvanced Display Unit

Transponder

Reader and CTV box

ACSESVital on-board

Computer

Axle generator

Radio Antenna


ADUADU


Cab Signal Speed Limit

Civil Speed Limit

Enforcement Indicator

Signal Aspect

TranspondersTransponders

Transponder data contained in Programmable plugTransponder data contained in Programmable plug

• Operates to 310 MPHOperates to 310 MPH• Passive - No wiringPassive - No wiring



Transponder OperationTransponder Operation

– On board antenna transmits 27.115 MHz signalOn board antenna transmits 27.115 MHz signal

– Wayside transponder receives signal + Uses Wayside transponder receives signal + Uses

energy in received signal to power transmitterenergy in received signal to power transmitter

– Transponder transmits 4.5 MHz data signalTransponder transmits 4.5 MHz data signal

– Message contains 255 bits - 180 bits data, 72 Message contains 255 bits - 180 bits data, 72

bits CRC + 3 fill bitsbits CRC + 3 fill bits



Transponder DataTransponder Data

– Location of Transponder (RR, Line, MP, Track,)Location of Transponder (RR, Line, MP, Track,)

– Distance to Next TransponderDistance to Next Transponder

– Current Civil Speed for 5 Train TypesCurrent Civil Speed for 5 Train Types

– Distance to Speed RestrictionDistance to Speed Restriction

– Speed Restriction Speed Limit For 5 Train TypesSpeed Restriction Speed Limit For 5 Train Types

– Length of Speed RestrictionLength of Speed Restriction



Transponder Data (Cont.)Transponder Data (Cont.)

– Distance to Home SignalDistance to Home Signal

– Grade Grade

– Local ATCS Radio Address and FrequencyLocal ATCS Radio Address and Frequency

– Phase/Power Break Start/Stop LocationsPhase/Power Break Start/Stop Locations



ATCS 200 Radio Network DataATCS 200 Radio Network Data

– Interlocking Home Signal StatusInterlocking Home Signal Status

– Interlocking Exit TrackInterlocking Exit Track

– Start/Stop Location of Temporary Speed Start/Stop Location of Temporary Speed

RestrictionRestriction

– Temporary Speed Limits for Passenger and Temporary Speed Limits for Passenger and

FreightFreight


ACSES Speed RestrictionsACSES Speed Restrictions

80 mph

60 mph

100 mph

Curves, Bridges, etc.


ACSES Positive Train StopACSES Positive Train Stop

Target Speed = 0

VitalEncoder

RadioDS 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


ACSES PTCACSES PTC

Phase IPhase I– Civil Speed EnforcementCivil Speed Enforcement– Home Signal Stop Enforcement (PTS)Home Signal Stop Enforcement (PTS)

Phase IIPhase II– Radio Release PTSRadio Release PTS– Temporary Speed Restriction - On Board Temporary Speed Restriction - On Board

EnforcementEnforcement


ACSES PTC Phase I StatusACSES PTC Phase I Status

BostonBoston

CoveCove228.0228.0

New New HavenHaven

Mill RiverMill River73.873.8

NanNan113.3113.3

High StreetHigh Street139.0139.0

JunctionJunction214.0214.0

Conn./ R.I.Conn./ R.I.141.1141.1

R. I. / Mass.R. I. / Mass.190.8190.8

In Service DatesIn Service DatesMay, 2001May, 2001May, 2001May, 2001December 10, 2000December 10, 2000May, 2001May, 2001



NJ/NYCNJ/NYC1.21.2

Washington, Washington, D.C.D.C.

HolmesHolmes77.277.2

LandoverLandover128.8128.8

GroveGrove112.4112.4

PrincePrince57.357.3

MorrisMorris58.358.3

Maryland/DelawareMaryland/Delaware41.441.4

Pa./N.J.Pa./N.J.57.757.7

In Service DatesIn Service DatesJune 30, 2001June 30, 2001Not ScheduledNot ScheduledMarch 26, 2001March 26, 2001

Ragan Ragan 29.729.7

CountyCounty32.832.8

HamHam55.555.5

131.6131.6MarylandMaryland

Delaware/Pa.Delaware/Pa.18.218.2



On-board equipment installed & ready for On-board equipment installed & ready for (or in) service (241 Units)(or in) service (241 Units)– 77 Amtrak77 Amtrak– 74 MBTA74 MBTA– 24 CSX24 CSX– 16 P & W16 P & W– 14 CDOT14 CDOT– 12 High Speed Locomotives12 High Speed Locomotives– 24 Acela24 Acela


ACSES PTC ImplementationACSES PTC Implementation

Standard Interfaces designed to allow Standard Interfaces designed to allow application of ACSES on different application of ACSES on different locomotives and control cars locomotives and control cars – Cab Signals SystemsCab Signals Systems– Air Brake InterfaceAir Brake Interface– Locomotive ControlsLocomotive Controls


ACSES PTC Phase I OperationACSES PTC Phase I Operation

Infrastructure Data Must be AccurateInfrastructure Data Must be Accurate– Curve Speeds & LocationsCurve Speeds & Locations– Chaining dataChaining data

Operation ProblemsOperation Problems– No problems with transpondersNo problems with transponders– Operator’s learning curve Operator’s learning curve – Brake Curves conservativeBrake Curves conservative– No Time to Penalty or Brake curve information No Time to Penalty or Brake curve information

given to operatorgiven to operator


ACSES PTC Phase I OperationACSES PTC Phase I Operation

System Modifications System Modifications – Expand wheel size calibration rangeExpand wheel size calibration range– Redefine actions requiring operator Redefine actions requiring operator

acknowledgementacknowledgement– Modify Tilt Enable/DisableModify Tilt Enable/Disable– Energize ACSES magnet valve when cutoutEnergize ACSES magnet valve when cutout


MCP

To CETC

2oo3Safety server

TSR server

WCC / FPD 1

Multiplexer

Multiplexer

BCP

WCC / FPD 2

Multiplexer

Multiplexer

DSU

DSU DSU

DSU

Encoder EncoderTrain

Network server - 1Network server - 2

1 of 4/5 1 of 4/5

Modem DSP 9600

A/B switch

Modem

1 of 10 1 of 10

HUB 1NMS

Modem

HUB 2

ACSES PTC Phase IIACSES PTC Phase II

ACSES PTC Phase II OperationACSES PTC Phase II Operation

Temporary speed restrictions (TSR) by CETC Temporary speed restrictions (TSR) by CETC operatorsoperators– Current process retainedCurrent process retained– Paper copies and/or voice radio updates Paper copies and/or voice radio updates

TSRs transmitted to trains in terms of radio TSRs transmitted to trains in terms of radio coverage areascoverage areas– Train receives all TSRs in direction of travel for Train receives all TSRs in direction of travel for

current plus next 2 radio coverage areascurrent plus next 2 radio coverage areas TSRs enforced by onboard equipment the TSRs enforced by onboard equipment the

same as permanent speed restrictions same as permanent speed restrictions received from transpondersreceived from transponders


ACSES PTC Phase II StatusACSES PTC Phase II Status

BCPs deliveredBCPs delivered– Antenna sites being determinedAntenna sites being determined

Encoders deliveredEncoders delivered– Site specific logic design startedSite specific logic design started

TSR Input Process & Interface with CETC TSR Input Process & Interface with CETC operators definedoperators defined

Office servers and communications Office servers and communications network designednetwork designed

OBC requirements definedOBC requirements defined


ACSES PTC Phase II ScheduleACSES PTC Phase II Schedule

Phased implementationPhased implementation– PTS Radio releasePTS Radio release– TSR enforcementTSR enforcement

To be completed 2002To be completed 2002


PTC Interoperability PTC Interoperability

NJT ASES NJT ASES – EquipmentEquipment

• Compatible transpondersCompatible transponders• Standard antenna/transponder interfaceStandard antenna/transponder interface

– SystemSystem• Transponder messages defined by Transponder messages defined by

Amtrak/NJTAmtrak/NJT


Conclusion Conclusion

In serviceIn service– 75 Mile section - December 10, 200075 Mile section - December 10, 2000– 22 Mile section - March 26, 200122 Mile section - March 26, 2001

Provides functionality desiredProvides functionality desired Operators are learning the conservative nature Operators are learning the conservative nature

of the brake curvesof the brake curves Input from operators is being used to modify Input from operators is being used to modify

system operationsystem operation ACSES + Cab signal provides civil speed, train ACSES + Cab signal provides civil speed, train

separation and signal speed enforcementseparation and signal speed enforcement


amtrak advanced civil speed enforcement ptc system status report jim hoelscher may 2001

Documents

signal speed enforcement

acses speed restrictions

acses cbtc conference

civil track speed limit

signal wayside transponder

stop train civil speed

radio cbtc conference

data signal message