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![Page 1: Standards in the GCM Gateway Traveler Information System 1512 Standards Workshop Elmhurst, IL October 14-15, 2003 Standards in the GCM Gateway Traveler.](https://reader036.fdocuments.net/reader036/viewer/2022062409/56649eaa5503460f94bafc29/html5/thumbnails/1.jpg)
Standards in the GCM Standards in the GCM GatewayGateway Traveler Information SystemTraveler Information System
David Zavattero, ITS Program Manager
1512 Standards Workshop1512 Standards WorkshopElmhurst, ILElmhurst, ILOctober 14-15, 2003October 14-15, 2003
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DE LEUW, CATHER * GATEWAY TRAVELER INFORMATION SYSTEM
150 Miles150 Miles
GATEWAY TRAVELER INFORMATION SYSTEM GATEWAY TRAVELER INFORMATION SYSTEM
3 states - IL, IN, WI
16 counties
Over 10 M population
Over 30 stakeholder agencies
100+ of jurisdictions
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GCM GATEWAY System GCM GATEWAY System ArchitectureArchitecture
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Gateway System FunctionsGateway System FunctionsREAL-TIMEREAL-TIME Data collection Data validation and fusion Data distribution
Types of Data SourcesTypes of Data Sources Traffic Management Centers Emergency Dispatch Centers Weather Sensor Systems DOTs/Tollway
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www.gcmtravel.com
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Implementation with COTSImplementation with COTS Programming Languages:
Java/C++/html/… Database Management System: Versant
Object-oriented database OS platforms: UNIX/Windows C2C and internal Inter-Process
Communication: Iona CORBA “Orbs”
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Gateway C2C Interface ComponentsGateway C2C Interface Components
Gateway Data Object Model (GDOM)Gateway Data Object Model (GDOM)
- defines data format- defines data format Gateway Message Oriented Middleware (GMOM) Gateway Message Oriented Middleware (GMOM)
- defines data exchange mechanism- defines data exchange mechanism
All defined in CORBA All defined in CORBA Interface Definition LanguageInterface Definition Language
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Gateway Data Object ModelGateway Data Object ModelUses StandardsUses Standards
TMDD – Traffic Management Data DictionaryTMDD – Traffic Management Data Dictionary MS/ETMC2 – Message Sets for External Traffic MS/ETMC2 – Message Sets for External Traffic
Management Center CommunicationManagement Center Communication LRMS – Location Referencing Message SpecificationsLRMS – Location Referencing Message Specifications
Southern California Priority Corridor ShowCase Southern California Priority Corridor ShowCase ProjectProject
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GDOM Location ResolutionGDOM Location Resolution
Referencing Methods: Cross Street Mile Post Address Coordinate Ramp Geometry or
SegmentID based
Types: Point Section Lane
Based on the LRMS StandardBased on the LRMS Standard
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Data Collection
1 2 3 4 5
10
8/9
7
6
10
GMOM
TMDD
IM 1512
MS/ETMCC 511- ATIS
GDOM
IDL
LRMS
XML
C2C CORBA
Gateway Use of Gateway Use of StandardsStandards
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Gateway Message Oriented MiddlewareGateway Message Oriented MiddlewareGMOMGMOM
Defines a Publisher/Subscriber model based data exchange protocol
Based on CORBA Event Service
Uses a sophisticated Mediator Channel
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Gateway’s Use of XMLGateway’s Use of XML
Gateway now publishing real-time data in XML Schema file.
XML data file made available to external users via protected WebPages.
Gateway XML Schema similar to J2354 ATIS standard
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SummarySummary The GCM Gateway TIS is a complex system providing The GCM Gateway TIS is a complex system providing
real-time traveler information to the public and real-time traveler information to the public and agencies in a 3-state metropolitan region.agencies in a 3-state metropolitan region.
Gateway was developed by applying available Gateway was developed by applying available standards.standards.
The C2C CORBA standard is the basis for integration The C2C CORBA standard is the basis for integration and interoperability with a wide variety of systems.and interoperability with a wide variety of systems.
Gateway will be a primary data source for the Illinois, Gateway will be a primary data source for the Illinois, Wisconsin, and Indiana 511 Systems.Wisconsin, and Indiana 511 Systems.