ITS Canada Annual conference 2013, Toronto Roadside ITS architecture – ITS stations for connected vehicles Technology for a better society 1 Trond Foss SINTEF Transport Research Norway
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ITS Canada Annual conference 2013, Toronto
Roadside ITS architecture –
ITS stations for connected vehicles
Technology for a better society 1
Trond Foss
SINTEF Transport Research
Norway
Main objects in intelligent transport systems
Infrastructure Vehicles with persons and/or goods
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Infrastructure Vehicles with persons and/or goods
ICT infrastructure and ITS servicesInfrastructure equipment
The ITS station reference model – 4 ITS sub-systems
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Reference: ETSI EN 302 665 V1.1.1 (2010-09) Intelligent Transport Systems; Communications Architecture.
Our main task: to develop an ITS Roadside sub-system
Roadside subsystemCentral
ITS station
Personal
subsystem
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Vehicle
subsystem
A closer view of a Roadside sub-system
Roadside ITS station with ITS applications
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Traffic signals and signs Sensors
Roadside ITS station modules
Roadside
ITS-S
gateway
ITS-S Host with
ITS application(s)ITS-S Router
ITS-S Border
Router
Roadside ITS station
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gateway
SensorsTraffic signs and
signals
• What are the ITS applications to be hosted by the ITS-Host?
• How should the Roadside ITS-S interface with sensors and traffic
signals and signs?
• How should the Roadside ITS-S interface with the Vehicle ITS
station?
Crucial questions to be answered
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station?
• How should the Roadside ITS-S interface with the Personal ITS
station?
• How should the Roadside ITS-S interface with the Central ITS
station?
7
ITS applications
An association of two or more complementary ITS-S applications constitutes
an ITS application which provides an ITS service to a user of ITS.
Reference: ETSI EN 302 665 V1.1.1 (2010-09) Intelligent Transport Systems; Communications Architecture.
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8
Roadside ITS station
ITS-Station application
XX
Central ITS station
ITS-Station application
XX
Vehicle ITS station
ITS-Station application
XX
ITS application XX
1. Manage Transportation Network Information
2. Manage Transportation Network Quality
3. Support Transportation Network Continuous Operation
4. Perform Operational Traffic Management Planning
5. Monitor Traffic situation (our main focus in the project)
Possible ITS applications (high level)
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5. Monitor Traffic situation (our main focus in the project)
6. Perform Traffic Control
7. Provide Traffic situation Information
8. Support and Control Mobility and Transport Means Operation
9. Manage En-route Reporting
10.Manage Transport Means Information
Reference: ARKTRANS v.6 on www.arktrans.no
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5. Monitor Traffic situation
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ITS application: Monitor Traffic flow
Roadside ITS station
ITS-S application:
Monitor traffic Flow
Central ITS station
ITS-S application:
Vehicle ITS station
ITS-S application:
Monitor Traffic Flow
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Monitor traffic FlowITS-S application:
Monitor Traffic FlowMonitor Traffic Flow
ITS application: Monitor Traffic Flow
Interfaces
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• A top – down approach based on the ITS sub-
system architecture
• A detailed and unambiguous specification of
the ITS application (s) to be implemented
Some high level recommendations
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• A detailed and unambiguous specification of
how each ITS application is split into ITS
station applications (an allocation of the ITS
application processes to the ITS stations)
• Interface specifications based on international
standards
13
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