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National and Regional ITS Architectures Courtesy of Bart Cima, IBI Group

National and Regional ITS Architectures Courtesy of Bart Cima, IBI Group. Overview. What is the National ITS Architecture? User Services Logical Architecture Physical Architecture Market Packages Developing a Regional ITS Architecture Information Sources.

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National and Regional ITS Architectures Courtesy of Bart Cima, IBI Group

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  1. National and Regional ITS ArchitecturesCourtesy ofBart Cima, IBI Group

  2. Overview • What is the National ITS Architecture? • User Services • Logical Architecture • Physical Architecture • Market Packages • Developing a Regional ITS Architecture • Information Sources

  3. What is the National ITS Architecture?

  4. What is the National ITS Architecture? • Provides a structured approach for planning, defining, and integrating intelligent transportation systems that meet national and regional needs • Defines: • Types of systems to be deployed • Functionality of the systems • Information exchanged between the systems

  5. The National ITS Architecture Is a “Tool” • Framework • Identifies ITS components and interconnections • Vocabulary • Uses specific terms for clear communications • Guidance • For development of ITS project • For early identification of integration opportunities • For compliance with ITS Standards • For customized development of a Regional ITS Architecture

  6. Federal Regulations • FHWA Rule and FTA Policy • Regions deploying ITS projects shall use the National ITS Architecture to develop a Regional ITS Architecture • All ITS projects shall subsequently adhere to the Regional ITS Architecture and ITS Standards • Applies to all ITS projects that are funded in whole or in part with the Highway Trust Fund (including Mass Transit Account)

  7. Entry Points Into the Architecture Source: National ITS Architecture – Version 5

  8. User Services

  9. What is a User Service? • Defines What ITS Should Do From the User's Perspective • Represents a Broad Range of Users • Allows System or Project Definition to Begin by Establishing the High Level Services That Will Be Provided to Address Identified Problems and Needs

  10. User Services Bundles • Travel and Traffic Management • Public Transportation Management • Electronic Payment • Commercial Vehicle Operations • Emergency Management • Advanced Vehicle Safety Systems • Information Management • Maintenance and Construction Operations

  11. Travel and Traffic Management • 1.1 Pre-trip Travel Information • 1.2 En-route Driver Information • 1.3 Route Guidance • 1.4 Ride Matching And Reservation • 1.5 Traveler Services Information • 1.6 Traffic Control • 1.7 Incident Management • 1.8 Travel Demand Management • 1.9 Emissions Testing And Mitigation • 1.10 Highway Rail Intersection

  12. Transit and E-Payment 2.0 Public Transportation Management • 2.1 Public Transportation Management • 2.2 En-route Transit Information • 2.3 Personalized Public Transit • 2.4 Public Travel Security 3.0 Electronic Payment • 3.1 Electronic Payment Services

  13. Logical Architecture

  14. Logical Architecture • Defines the Processes (the Activities and Functions) That Are Required to Provide the Required User Services • Many Different Processes Must Work Together and Share Information to Provide a User Service • Can Be Implemented Via Software, Hardware, or Firmware • Independent of Technologies and Implementations

  15. Data Flow Diagram • Show the Functions That Are Required for ITS and the Information That Moves Between These Functions • Circles Represent the Processes or Functions • Arrows Represent the Data Flows • Parallel Lines Represent Data Stores • Rectangles Represent the Terminators

  16. Information Management Emergency Management Travel & Traffic Management Electronic Payment Public Transportation Management Commercial Vehicle Operations M&C Ops Advanced Vehicle Safety Systems Manage ITS Data Flow Diagram Source: Version 5 National ITS Architecture

  17. Manage Traffic – User Services • 1.1 Pre Trip Travel Information • 1.2 En-Route Driver Information • 1.5 Traveler Services Information • 1.6 Traffic Control • 1.7 Incident Management • 1.8 Travel Demand Management • 1.9 Emission Testing and Mitigation • 1.10 Highway Rail Intersections • 3.1 Electronic Payment Services • 5.3 Disaster Response and Evacuation • 7.1 Archived Data Function • 8.1 Maintenance and Construction Operations

  18. Breakdown of Manage Traffic 1.1 Provide Traffic Surveillance 1.2 Provide Device Control 1.3 Manage Incidents 1.4 Manage Travel Demand 1.5 Manage Emissions 1.6 Manage Highway Rail Intersections

  19. 1.2 Provide Device Control 1.2.1 Select Strategy 1.2.2 Determine Road and Freeway State 1.2.3 Determine Ramp State 1.2.4 Output Control Data 1.2.5 Manage Parking Lot State 1.2.6 Maintain Static Data for TMC 1.2.7 Provide Roadside Control Facilities 1.2.8 Collect and Process Indicator Fault Data

  20. Source: Version 5 National ITS Architecture

  21. Process Specification • Provides an Overview of the Process • Set of Functional Requirements • Complete Set of Inputs and Outputs • Data Dictionary

  22. 1.2.7.1-Process Indicator Output Data for Roads • Implement the indicator output data • Provide control at intersections or pedestrian crossings • Provide the interface for data for units that manage multimodal crossings or highway-rail intersections • Monitor the status of the indicator equipment and provide fault status • Includes list of Data Inputs and Outputs

  23. Physical Architecture

  24. Physical Architecture • Forms a high-level structure around the processes and data flows in the Logical Architecture • Defines the Physical Entities and Their Connections • Relates to Solutions as Implemented

  25. Subsystems • Individual physical systems that comprise the overall ITS program • Four Types • Center • Field • Vehicle • Traveler

  26. National ITS Architecture Subsystems Source: Version 5 National ITS Architecture

  27. Key Terms • Equipment Packages: The building blocks of subsystems. • Examples: “Onboard Transit Signal Priority”, “Roadway Basic Surveillance” • Architecture Flows: Data exchanged between ITS subsystems. • Examples: “signal control data”, “traffic images” • Market Packages: • Links needs to appropriate solutions provided by ITS applications • Define the components (equipment packages and subsystems) and interfaces (architecture flows) needed to implement a particular solution

  28. MARKET PACKAGES Advanced Traveler Information Systems Advanced Traffic Management Systems Advanced Public Transportation Systems Emergency Management Maintenance and Construction Management Archived Data Management Commercial Vehicle Operations Advanced Vehicle Safety Systems USER SERVICES Travel and Traffic Management Public Transportation Management Electronic Payment Emergency Management Maintenance and Construction Operations Information Management Commercial Vehicle Operations Advanced Vehicle Safety Systems Market Package Service Areas

  29. Market Package Example Architecture Flow Subsystem Equipment Package Source: Version 5 National ITS Architecture

  30. Market Package Example APTS7 – Multi - modal Coordination Source: Version 5 National ITS Architecture

  31. Market Package Example

  32. Consolidated View of the Architecture Source: City of Seattle ITS Master Plan (IBI Group)

  33. Developing a Regional Architecture

  34. What is a Regional ITS Architecture? • A framework for implementing and integrating ITS with a region • Planning tool for identifying gaps in existing and planned ITS deployments versus transportation needs • Involves working with agencies to document partnerships, roles, and responsibilities.

  35. Developing a Regional ITS Architecture Source: Regional ITS Architecture Guidance: Developing, Using and Maintaining an ITS Architecture For Your Region (October 2001)

  36. Regional ITS Architecture Elements • Description Of The Region • Identification Of Stakeholders • Operational Concept • Required Agreements • System Functional Requirements • Interface Requirements And Information Exchanges • Identification Of ITS Technical Standards • Sequence Of Projects Required For Implementation

  37. Operational Concept Development Operational Concept Defines: • Institutional Relationships Among Organizations • Roles And Responsibilities • Information Exchange

  38. Agreements Between Organizations • Documents Current Status of ITS Agreements • Identifies Needed Agreements as New Projects are Deployed • Provides Guidance on Elements of New Agreement

  39. Technical Framework Provides Guidance For Defining • System Functional Requirements • Interface Requirements • Information Exchanges

  40. ITS Technical Standards • ITS Technical Standards • Allows systems to “talk to each other” • Removes dependency on one vendor • FHWA will tie funding to use of standards • Identifies Key Regional ITS Technical Standards • Provides Guidance on Use of Standards

  41. Fitting It Together

  42. Why Develop a Regional ITS Architecture? • Saves Time and Money During Project Development • Guides Coordination Among Individual Projects • Sets Direction for Improving Efficiency of Transportation System • Provides Framework for Sharing Information Among Agencies and General Public • Reduces Cost of Implementation • Conformance With the Federal ITS Requirements Is Required to Receive Federal Highway Trust Funds

  43. Information Sources • National ITS Architecture: • http://www.iteris.com/itsarch/index.htm • US DOT ITS Program: • http://www.its.dot.gov/ • ITS Standards: • http://www.standards.its.dot.gov/standards.htm • ITS Benefits and Costs • http://www.benefitcost.its.dot.gov/ • ITS America • http://www.itsa.org/ • ITS Washington • http://depts.washington.edu/itswa/

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