Object Model Derivation for Roadway Transportation

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Object Model Derivation for Roadway Transportation

• US National ITS Architecture and Standards and
  Current OO ITS Projects

Richard P. Hooper, Ph.D.Vice President and Chief
ScientistTransportation SystemsIterisJanuary
10, 2000
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Topics of Discussion

• US National ITS Architecture
• US Standards Initiatives
• Some Current Object-Oriented ITS Projects
• Southern California Priority Corridor Showcase
  Project
• Orange County Model Deployment Initiative

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The National ITS Architecture
National Framework for Roadway Intelligent
Transportation Systems
http//www.odetics.com/itsarch
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Transportation User Services Fall Into Six
Categories . . .
US View of ITS Systems
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What Functions or Processes are Needed to Deliver
User Services?
Manage Transit
Provide Emergency Services
Manage Traveler Services
Manage Traffic
Manage CVO
Monitor Control Vehicle
Manage Payment Services
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But what do these Processes do?
Manage Transit
Provide Emergency Services
Provide Traveler Services
Manage Traffic
Manage CVO
Monitor Control Vehicle
Manage Payment Services
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Processes can be broken down into sub-processes.
. . .
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. . . and broken down further . . .
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Processes make up the Logical Architecture, which
defines . . .

• What functions are performed (circles)
• Data flows between functions (arrows)

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Physical Architecture defines where -
Subsystem
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Possible Interconnections for Traffic Management
Centers
Travelers
Commercial Vehicle Administration
Toll Administration
Emergency Management
Information Service Provider
Remote Traveler Support
Traffic Management
Planning
Fleet and Freight Management
Transit Management
Emissions Management
Personal Information Access
Roadway
Vehicle
Transit Vehicle
Toll Collection
Parking Management
Commercial Vehicle
Commercial Vehicle Check
Emergency Vehicle
Vehicles
Roadside
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Four Types of Communication . . .
Centers
Travelers
Remote Traveler Support
Commercial Vehicle Administration
Toll Administration
Emergency Management
Traffic Management
Information Service Provider
Personal Information Access
Planning
Fleet and Freight Management
Transit Management
Emissions Management
Vehicle
Roadway
Transit Vehicle
Toll Collection
Commercial Vehicle
Parking Management
Emergency Vehicle
Commercial Vehicle Check
Vehicles
Roadside
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But what about connections to the rest of the
world?

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Architecture Boundary Defined by Terminators
The Rest of the World
ITS
Terminators
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Interactive Traveler Info
Traffic Management
Transit Management
traffic information
transit and fare schedules
request for traffic information
transit information request
traveler request
traveler request
traveler information
traveler information
traveler information
traveler request
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Subsystems Are Comprised Of Equipment Packages
Centers
Travelers
Toll Administration
Emergency Management
Traffic Management
Commercial Vehicle Administration
Remote Traveler Support
Emergency Management
Planning
Fleet and Freight Management
Transit Management
Emissions Management
Information Service Provider
Personal Information Access
Vehicle
Roadway
Transit Vehicle
Toll Collection
Commercial Vehicle
Parking Management
Emergency Call-Taking
Emergency Vehicle
Commercial Vehicle Check
Vehicles
Roadside
Emergency Dispatch
Equipment Packages
Emergency Response Management
Equipment Packages Deployment-Oriented Pieces of
a Subsystem
Mayday Support
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Physical and Logical ArchitectureSubsystems -
Equipment Packages - Processes
Emergency Management
Emergency Dispatch
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Architecture Flows Connect Subsystems
signal control status
Traffic Mgmt
Roadway
Vehicle
vehicle probe data
traffic flow
request tag data
signal control data

• Architecture Flows
• Identify Flow of Data Between Subsystems
• Supporting Definitions in the Logical
  Architecture
• Associated Architecture Interconnects
  Characterize the Communications Requirements

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Architecture Flows (P.A.) are Made Up of Data
Flows (L.A.)
Traffic Mgmt
Information Service Provider
traffic information
Component Logical Data Flows

• current_road_network_state
• current_highway_network_state
• link_data_for_guidance
• prediction_data
• sensor_data_for_distribution
• traffic_data_for_distribution

?
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Physical to Logical Architecture Mapping
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Showcase Vision . . . All Modes and All Roads
Transit
Rail
INFORMATION CLEARING HOUSE
Transit Administration
Environmental Condition
Maritime
Rideshare
Transportation Services
Aviation
Commercial Vehicle
Emergency Management
Value Added Re-Sellers Public Tourist Travelers
Non-Motorized
Research Universities Entrepreneurs Commercial
Firms
Paratransit
Incident Management
Traffic Enforcement
Traffic Management
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• MISSION
• The transparent sharing of all transportation
  related data within the Southern California
  Market.
• OBJECTIVES
• Enable Inter-modal Transportation Management
• Deliver Comprehensive Traveler Information
• APPROACH
• To Link the Four Major Southern California
  Caltrans Districts together with a National
  Standards Driven, Center to Center Network

SAN BERNARDINO
LOS
ANGELES
VENTURA
RIVERSIDE
ORANGE
IMPERIAL
SAN DIEGO
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Showcase Object IDL
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Orange County Model Deployment Initiative
NEW BUSINESS MANAGEMENT SYSTEM
Information

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ITS for Traffic Management