role of the highway-rail intersection in the national its architecture ieee wg14 june 20, 2000 bruce...
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Role of the Highway-Rail Role of the Highway-Rail Intersection in theIntersection in the
National ITS ArchitectureNational ITS Architecture
IEEE WG14
June 20, 2000
Bruce EisenhartLockheed Martin
ArchitectureDevelopment
Team
ArchitectureDevelopment
TeamAgendaAgenda
What is the National ITS Architecture Highway Rail User Service/ User Service
Requirements Support of HRI in the National ITS
Architecture What can the National ITS Architecture
provide to HRI standards development process?
ArchitectureDevelopment
Team What is an architecture?What is an architecture?
Identifies boundaries and participants
Describes activities or functions
Provides framework for planning, defining, and integrating your ITS
ArchitectureDevelopment
TeamWhy was the National ITS Why was the National ITS Architecture needed?Architecture needed?
Interface standards identification/coordination
ITS complexity ITS integration
CONGESTIONAHEAD
ArchitectureDevelopment
Team
What does the National ITS What does the National ITS Architecture Consist of?Architecture Consist of?
User Services
LogicalArchitecture
PhysicalArchitecture
National ITS Architecture
Requirementseg. Incident Management, HRI
What functions?eg. Detect Incident Verify Incident
Where are the functions?E.g. Traffic Management
Center
ArchitectureDevelopment
TeamPhysical ArchitecturePhysical Architecture
Interfaces
Objectives &Requirements
Solutions
Communications
Transportation
Institutional
Defines physical entity interfaces Distributes functionality 3 layers
Communications Layer How information is transferred
between transportation systems Transportation Layer
What transportation systems transfer what information
Institutional Layer Supporting institutional structure,
policy, and strategies
ArchitectureDevelopment
Team
Physical Architecture EntitiesPhysical Architecture Entities
What is a Physical Architecture Entity? Major “building block” of the architecture
What “types” of entities are there? Terminator:
Users or institutions on the edge of the Architecture
Subsystem: Collection of functions within a single
institutional boundary
ArchitectureDevelopment
Team
Terminators Establish the Terminators Establish the
Architecture BoundaryArchitecture Boundary
Related SystemsEnvironment8 Terminators Including:•Environment•Roadway•Potential Obstacles
Users19 Terminators Including:•Driver•Traffic Operations Personnel•Emergency System Operator
29 Terminators Including:•DMV•Financial Institution•Other Vehicle
The Rest of the World
ITS
Terminators
ArchitectureDevelopment
Team
Physical Architecture SubsystemsPhysical Architecture SubsystemsPhysical Architecture SubsystemsPhysical Architecture SubsystemsTravelers
Vehicles Roadside
Centers
CommercialVehicle
Administration
Archived DataManagement
Vehicle
TransitVehicle
CommercialVehicle
EmergencyVehicle
RemoteTravelerSupport
PersonalInformation
Access
TollAdministration
EmergencyManagement
TrafficManagement
Fleet andFreight
Management
TransitManagement
EmissionsManagement
InformationServiceProvider
Roadway
Toll Collection
ParkingManagement
CommercialVehicleCheck
ArchitectureDevelopment
Team
Physical Architecture SubsystemsPhysical Architecture Subsystemsand Interconnectsand Interconnects
Travelers
Vehicles Roadside
Centers
Wide Area Wireless Communications
Veh
icle
to
Veh
icle
Co
mm
un
icat
ion
s
CommercialVehicle
Administration
Archived DataManagement
Ded
icat
ed S
ho
rt R
ang
e C
om
mu
nic
atio
ns
Vehicle
TransitVehicle
CommercialVehicle
EmergencyVehicle
RemoteTravelerSupport
PersonalInformation
Access
TollAdministration
EmergencyManagement
TrafficManagement
Fleet andFreight
Management
TransitManagement
EmissionsManagement
InformationServiceProvider
Roadway
Toll Collection
ParkingManagement
CommercialVehicleCheck
Wireline Communications
ArchitectureDevelopment
TeamConnecting Entities:Architecture Flows
TrafficManagement Roadway Vehicle
signal control status
local traffic flow
environmental conditions
signal control data vehicle probe data
vehicle signage data
• Architecture Flows (456 Total)
– High-level subsystem information exchange
– Considerations for integration
ArchitectureDevelopment
Team
Subsystems are made up of Subsystems are made up of functionsfunctions
Centers
CommercialVehicle
Administration
Archived DataManagement
TollAdministration
EmergencyManagement
TrafficManagement
Fleet andFreight
Management
TransitManagement
EmissionsManagement
InformationServiceProvider
• Logical Architecture elements are processes and data flows
Traffic Management Subsystem
Provide Device Control
Manage Travel
Demand
Manage Incidents
Provide Traffic
Surveillance
Logical Architecture defines the functionality required by each subsystem
ArchitectureDevelopment
Team
Logical ArchitectureLogical Architecture
Logical Architecture Defines The Functions To Be Performed The Information Transfers
Between Functions
It Does NOT Define: Where the Functions are Performed
This is the Role of the Physical Architecture How the Functions are Implemented
This isn’t done anywhere in the National ITS Architecture
SelectRoute
DirectDriver
destination
currentposition
trafficconditions
directionsselectedroute
map data
Route Guidance - Logical View
ArchitectureDevelopment
Team
Focused Architecture ViewsFocused Architecture ViewsV
ehic
le to
Veh
icle
Com
mun
icat
ions
CommercialVehicleCheck
Vehicle Subsystems Roadside Subsystems
ParkingManagement
Toll Collection
Roadway
EmergencyVehicle
CommercialVehicle
TransitVehicle
Vehicle
RemoteTraveler Support
Wide Area Wireless Communications
CommercialVehicle
Administration
Freight and FleetManagement
Toll AdministrationEmergency
ManagementTraffic
Management
TransitManagement
EmissionsManagement
Information ServiceProvider
Traveler Subsystems Center Subsystems
PersonalInformation Access
Planning
Wireline Communications
Shor
t Ran
ge W
irel
ess
Com
mun
icat
ions
“Technical Framework” “Transportation Services”
?
ArchitectureDevelopment
Team
Travelers
Vehicles Roadside
Centers
Archived DataManagement
Vehicle
TransitVehicle
CommercialVehicle
EmergencyVehicle
RemoteTravelerSupport
PersonalInformation
Access
TollAdministration
EmergencyManagement
TrafficManagement
Fleet andFreight
Management
TransitManagement
EmissionsManagement
InformationServiceProvider
Roadway
Toll Collection
ParkingManagement
CommercialVehicleCheck
CommercialVehicle
Administration
Next Level of Detail:Next Level of Detail:Equipment PackagesEquipment Packages
• Subsystems are comprised of Equipment Packages
EquipmentPackages
TMC Basic Signal Control
TMC Based Freeway Control
HRI Traffic Management
Traffic Management Subsystem
TMC Incident Detection
ArchitectureDevelopment
TeamMarket PackagesMarket Packages
Identify the Pieces of the Architecture Required to Implement a Particular Service Physical Architecture subsets with multiple, related
equipment packages from one or more subsystems”
More Specific Than User Services Segregate Potential Early Deployments From
Higher Risk Services Defined To Support Benefits Analysis with Clear
Ties to Transportation Problems
ArchitectureDevelopment
Team
Focused Architecture View:Focused Architecture View:Market PackagesMarket Packages
Traffic Management Subsystem Roadway Subsystem
TMC Incident Detection
TMC Based Freeway Control
TMC Basic Signal Control Roadway Signal Control
Roadway Basic Surveillance
Roadway Incident Detection
Surface Street Control
EquipmentPackages
Market Package
Subsystems
Traffic Maintenance
ArchitectureDevelopment
Team
Version2.0
19931994
1995
19961997 1998
UserServices
Phase ICompetition
Phase IIArchitecture
PublishedHRI
Update
Current Architecture VersionCurrent Architecture Version
• Published December 1999
Version3.0
1999
ArchitectureDevelopment
Team
National ITS Architecture National ITS Architecture Release 3.0Release 3.0
Where to find it CD-ROM Web Page: http://www.iteris.com/itsarch
ArchitectureDevelopment
TeamHRI in ITS HRI in ITS
HRI User Service
HRI User Service Reqmts
Nat’l ITS Arch Update
Developed 2/96 by FRA, Volpe, and JPL
Created 6/96 byFRA and JPL
Completed 1/97
ArchitectureDevelopment
TeamHRI User Service RequirementsHRI User Service Requirements
Key areas of User Service Requirements Types of Users Interfaces
Non-Real-time Real-time
Active Warning Systems Augment Intersection with Highway traffic control devices Automated Collision Avoidance Function Intelligent Intersection Controller
Standard Crossing (Standard Speed Rail) Advanced Crossing (High Speed Rail) Collision Notification
ArchitectureDevelopment
Team
Example User Service Example User Service RequirementsRequirements
USR Description1.10 Highway-Rail Intersection1.10.0 Highway-Rail Intersection. ITS shall include a Highway-
Rail Intersection (HRI) function to control highway and rail traffic in at-grade HRIs. Two sub-services are supported: Standard Speed Rail Subservice which is applicable to light rail transit, commu
1.10.1 The Highway-Rail Intersection (HRI) shall be applicable to operational, at-grade highway-rail intersections with train operational speeds up to 125 MPH.
1.10.1.1 HRI users shall include light rail transit and rapid rail transit approaching and crossing HRIs.
1.10.1.2 HRI users shall include commuter rail trains approaching and crossing HRIs.
1.10.1.3 HRI users shall include freight and intercity passenger trains approaching and crossing HRIs.
ArchitectureDevelopment
Team
The National ITS Architecture: The National ITS Architecture: Consensus ProcessConsensus Process
The National ITS Architecture is based on Stakeholder Consensus
Developing HRI consensus: Architecture HRI Kickoff and Special Program Review (FRA,
FHWA, FTA, Volpe, AAR, Canac, American Shortline Railroad Association, NCDOT, AASHTO, ITE, ITS America)
Site Visits (Union Pacific, Norfolk Southern/NCDOT) Key Meetings (HRI Technical Working Group, TRB HRI
Session) Direct Discussion and Feedback (Volpe, Canac, AAR, TTI,
UP)
ArchitectureDevelopment
Team
Some Drivers for Physical Some Drivers for Physical Architecture DecisionsArchitecture Decisions
What are the Existing System Boundaries? What are the Crucial Interfaces?
Does the Interface: Span Agencies? Connect Public and Private Sectors? Require Broad and Interoperable Implementation?
Are (Inter)National Standards Desirable?
Where are the Key Performance and Functional Requirements?
ArchitectureDevelopment
Team
The National ITS Architecture: The National ITS Architecture: HRI User Service Addition (1)HRI User Service Addition (1)
WaysideEquipment
IntelligentController
AutomaticGates/Barriers
TrafficSignals
VariableMessage Signs
Surveillance
Short RangeCommunications
TrackCircuits
TRAINAPPROACHING
Rail Operations Traffic Management
What are the current and potential entities and how do they or might they interface ?
ArchitectureDevelopment
Team
The National ITS Architecture: The National ITS Architecture: HRI User Service Addition (2)HRI User Service Addition (2)
WaysideEquipment
IntelligentController
AutomaticGates/Barriers
TrafficSignals
VariableMessage Signs
Surveillance
Short RangeCommunications
TrackCircuits
TRAINAPPROACHING
Rail Operations Traffic Management
Traffic Management Subsystem
VehicleSubsystemWayside
EquipmentTerminator
RailOperationsTerminator
RoadwaySubsystem
ArchitectureDevelopment
Team
Standard Railroad Grade Standard Railroad Grade Crossing Market PackageCrossing Market Package
SubsystemEquipment Package
Terminatorarchitecture
flow
Roadway
Standard SpeedRail Crossing
WaysideEquipment
track status
Traffic
trafficcharacteristics
Pedestrians
Driver
crossingpermission
driverinformation
hristatus
RailOperations
Traffic Management
HRI TrafficManagement
hri advisories
hri status
hri control datahri request
ArchitectureDevelopment
Team
Advanced Railroad Grade Advanced Railroad Grade Crossing Market PackageCrossing Market Package
SubsystemEquipment Package
Terminatorarchitecture
flow
Roadway
Advanced SpeedRail Crossing
WaysideEquipment
track status
Traffic
trafficcharacteristics
Pedestrians
Driver
crossingpermission
driverinformation
hristatus
RailOperations
Traffic Management
HRI TrafficManagement
hri advisories
hri status
hri control data
hri request
Intersection
blockage notification
Intersectionblockage
notification arriving traininformation
ArchitectureDevelopment
Team
Railroad Operations Railroad Operations Coordination Market PackageCoordination Market Package
Roadway
RailOperations
Traffic Management
Rail OperationsCoordination
hri advisories
hri status
hri control data
hri request
railroadadvisories
railroadschedules
InformationServiceProvider
trafficinformation
SubsystemEquipment Package
Terminatorarchitecture
flow
ArchitectureDevelopment
Team
The National ITS Architecture: The National ITS Architecture: HRI Update SummaryHRI Update Summary
Rail Operations and Wayside Equipment Added as Terminators
Augmented Traffic Management and Roadway Subsystems
New Traffic Management Equipment Packages HRI Traffic Management Rail Operations Coordination
New Roadway Equipment Packages Standard Rail Crossing Advanced Rail Crossing
New Architecture Flows Defined and Mapped to Communications Interconnects New Flows Identified (e.g., Rail Operations to Traffic Management) Existing Supporting Flows Reviewed (e.g., Roadway to Vehicle)
New Market Packages Created
ArchitectureDevelopment
Team ITS StandardsITS Standards
Define subsystem interfaces in more detail
Use National ITS Architecture interface definitions as starting point
ArchitectureDevelopment
TeamArchitecture and StandardsArchitecture and Standards
TrafficManagementSubsystem
Transit ManagementSubsystem
traffic information
request fortraffic information
transit system data
signal priority status
NTCIP Center to Center
Traffic Management Data Dictionary
Transit Communications Interface Profiles
ITS Architecturerequest for signal priority
ITS Standards Message Set
Data Elements Communications
Profile
ArchitectureDevelopment
Team
Links Between Architecture and Standards
TM Data Dictionary
EVENT_IncidentSeverity_code
Data element
incident information
Physical Architecture
ArchitectureFlow
TrafficManagementSubsystem
Emergency Management Subsystem
incident_alert
incident_severity
Logical (Leveled) Architecture
Dataflow (primitive)
Dataflow
ContainsContains
Contains
M A P S T O
Incident-Description
External TMC Message Set
Message Set
Event-Incident Severity
Message
Contains
M A P S T O
ArchitectureDevelopment
Team
How Can Architecture Support How Can Architecture Support Standards DevelopmentStandards Development
Definition of Interfaces in National ITS Architecture serves as starting point for standards effort
Where to find definition of HRI Interfaces: Standards Requirements Package 12: Highway
Rail Intersections Available on CD-ROM- Archdocs/Standards
Requirements Document (pages 640-663) Essential information also on CD-ROM hypertext under
Hypertext View/Standards Requirements
ArchitectureDevelopment
TeamSR Package 12: OutlineSR Package 12: Outline
1 Introduction to Standards Requirements Documentation 2 Introduction: Highway Rail Intersections (HRI) 3 Transaction Sets for Highway Rail Intersection Interfaces 3.1 Rail Operations and Traffic Management Subsystem 3.2 Roadway Subsystem and Traffic Management Subsystem 3.3 Roadway Subsystem and Wayside Equipment Terminator 4 Interface Decomposition 4.1 Traffic Management -> Rail Operations 4.2 Traffic Management -> Roadway Subsystem 4.3 Wayside Equipment -> Roadway Subsystem 4.4 Rail Operations -> Traffic Management 4.5 Roadway Subsystem -> Traffic Management 4.6 Roadway Subsystem -> Wayside Equipment 5 Communications Layer Requirements
6 Constraints 7 Data Dictionary Elements
ArchitectureDevelopment
Team
RSRoadway Subsystem
TMSTraffic Management
Wayside Equipment
Rail Operations
hri statusintersection blockage notification
hri statusintersection blockage notification
hri control datahri request
hri advisories
arriving train informationtrack status
railroad advisoriesrailroad schedules
NationalRegionalProductNone
HRI InterfacesHRI Interfaces
ArchitectureDevelopment
TeamHRI Arch Flows HRI Arch Flows
Source Destination Architecture FlowRail Operations Traffic Management railroad advisoriesRail Operations Traffic Management railroad schedulesRoadway Subsystem Traffic Management hri statusRoadway Subsystem Traffic Management intersection blocking
notificationRoadway Subsystem Wayside Equipment hri statusRoadway Subsystem Wayside Equipment intersection blocking
notificationTraffic Management Rail Operations hri advisoriesTraffic Management Roadway Subsystem hri control dataTraffic Management Roadway Subsystem hri requestWayside Equipment Roadway Subsystem arriving train informationWayside Equipment Roadway Subsystem track status
ArchitectureDevelopment
TeamSummarySummary
National ITS Architecture describes interfaces and information flows critical to HRI as part of ITS
Standards Package 12: HRI is key starting point for development of standards.