meeting the communication challenges for positive train control

8/12/2019 Meeting the Communication Challenges for Positive Train Control

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AREMA 2009 Annual Conference & Exposition

Meeting t e Communication

Control

Chicago, IL | September 20-23, 2009

AREMA 2009


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Railroad Safet Advisor Committee- 3 core

objectives1. Prevent train to train collisions.

2. Enforce all forms of speed limits (permanent,temporary speed restrictions, and switchs eeds .

3. Protect roadway workers working within theirauthorized limits.

PLUS 1: Protect against switches not lined properly.


AREMA 2009


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-

Safet

Warnings and AlertsEnforcement of safe practices

Efficiency

Instructive display

Visibility in Non-Signal Territory

VitalitDesigned with same integrity of existing signaling

systems


a s o nown sa e s a e

AREMA 2009


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Interoperable Train Control (ITC) Agreement


AREMA 2009


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ITC Agreement BNSF/CSX/NS/UPRR si n a reement to

establish positive train controlinteroperability standards

eve op s an ar s Uniform interface standards

Messaging format re ess pro oco

Braking Algorithm

Interoperable hardware platforms

Waysi es Base stations

Locomotives


n ras ruc ure s ar n

Utilization of 220MHz frequency spectrum

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Must have a reement at man levels to intero erate

Application- System Functional BehaviorMessaging- Format, Content, Track Database

Crew Display (HMI)- Same form, function, feel

Wireless (RF) protocols- Minimized wireless

Transport protocols- Support multiple wireless/wired

aths

FRA approval of Type Approval for joint operation


AREMA 2009


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Norfolk Southern Pilot Territory Columbia to Charlotte

Signal Territory- ABS & CTC

108 Route Miles

Charleston to Columbia

Non-signaled

114 Route Miles

Charlotte

Columbia

Charleston


AREMA 2009


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-The Track Database, Train Clearance, Bulletins andTrack Authorities, are sent electronically for displayto the crew. This data is used b OTC to enerateWarnings and Enforcement.

GPS

UTCSOTC OFFICE

TRAIN

DATA TRAINDATASYSTEM

WORK

PASSING SIDING

NT


INDUSTRY SIDING

AREMA 2009


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- System monitors safe operating conditionsincluding switch positions, speedrestrictions and authorities and provideswarnings of changing conditions.

OTC OFFICE

TRACK

DATABASE SYSTEM

WORK

PASSING SIDING

BRAKING

DISTANCE


INDUSTRY SIDING

SWITCH

POSITION

MONITORING

AREMA 2009


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-If action is not taken to bring the train intosafe operating conditions, the system willa l brakes to brin the train to a safestop.

WORK

PASSING SIDING

ACCURATE

POSITION

BRAKING

DISTANCE

MAINTAIN

AUTHORIZED

SPEEDS


INDUSTRY SIDING

SWITCH

POSITION

MONITORINGELECTRONICOPERATING

INSTRUCTIONS

PROTECT

AUTHORITY

LIMITS

AREMA 2009


11/20


WaysideSegment

Control

PointsOTC BackOfficeServer

M03

Dispatch

ice egment

AssetTracking System

MessageRouter Monitored

Switches

CommunicationsSegment Other

Monitored

LocomotiveSegment


AREMA 2009


12/20


OTC with ITPBackground

S/A BOS

ATCS

TCP/IPXML

SOAP/HTTPS

XMLSOAP/HTTPS

EMPUDP

XML

JMS/MQ

XMLSOAP/HTTP(S)

Routing Transformation Management

IP

XML

JMS/MQ

IP

MonitoringBusiness

Process

Messaging(Local Queues)

ClassD

Auditing Logging Alerting

C/I BOSG/D BOS (1) G/D BOS (2)


VisioDocument

0 of 8 November 19, 2008

AREMA 2009


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AREMA 2009


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AREMA 2009 Annual Conference & Expositionays e o ocomo ve

LocomotiveWayside

Wayside Communications Module (WCM)Locomotive Communications Module (LCM)

Class C

a o (Pilot: 220 MHZ RCLRadio (Pilot: 220 MHZ RCL)

Class C

WIUTMC


AREMA 2009


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On-Board Network (OBN) Enclosure


AREMA 2009


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Back-Office Network Components

-

Firewall Services

Routing Services

o e ome en erv ces

etwor ost ng


AREMA 2009


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PTC-220 LLC

200 KHz nationwide

8 x 25 KHz channels OR 4 paired channels


80 KHz regional/nationwide

AREMA 2009


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w z u

nationwide

services for train control

existing VHF voice radio systems

- -

support train control


AREMA 2009


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Key H g Leve tec n ca eta s:1. Radios will operate on 220 MHz channels

Radios will support office to locomotive comms.

Radios will support locomotive to wayside comms.

Base

Locomotive

3. Channel access is TDMA

Base assigns channel slot

4. All radios will use GPS-based timing


AREMA 2009


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Crucial to successful PTC deployment

, ,

Satellite, 802.11

WiMax


AREMA 2009

meeting the communication challenges for positive train control

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