Transit Management Center --> Traffic Management Center:
traffic control priority request
Definitions
traffic control priority request (Information Flow): Request for signal priority at one or more intersections along a particular route.
Transit Management Center (Source Physical Object): The 'Transit Management Center' manages transit vehicle fleets and coordinates with other modes and transportation services. It provides operations, maintenance, customer information, planning and management functions for the transit property. It spans distinct central dispatch and garage management systems and supports the spectrum of fixed route, flexible route, paratransit services, transit rail, and bus rapid transit (BRT) service. The physical object's interfaces support communication between transit departments and with other operating entities such as emergency response services and traffic management systems.
Traffic Management Center (Destination Physical Object): The 'Traffic Management Center' monitors and controls traffic and the road network. It represents centers that manage a broad range of transportation facilities including freeway systems, rural and suburban highway systems, and urban and suburban traffic control systems. It communicates with ITS Roadway Equipment and Connected Vehicle Roadside Equipment (RSE) to monitor and manage traffic flow and monitor the condition of the roadway, surrounding environmental conditions, and field equipment status. It manages traffic and transportation resources to support allied agencies in responding to, and recovering from, incidents ranging from minor traffic incidents through major disasters.
Included In
This Triple is in the following Service Packages:
This triple is associated with the following Functional Objects:
This Triple is described by the following Functional View Data Flows:
This Triple has the following triple relationships:
Relationship | Source | Destination | Flow |
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Request-Response | Traffic Management Center | Transit Management Center | traffic control priority status |
Communication Solutions
- EU: SIRI - Secure Internet (ITS) (3)
- US: TCIP - Secure Internet (ITS) (15)
- (None-Data) - Secure Internet (ITS) (32)
Selected Solution
Solution Description
ITS Application Entity
CEN 15531-5 CEN 15213-4 CEN 15531-3 CEN 12896-4 CEN 12896-6 |
Click gap icons for more info.
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Mgmt
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Facilities
CEN 15531-2 |
Security
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TransNet
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Access
Internet Subnet Alternatives |
Note that some layers might have alternatives, in which case all of the gap icons associated with every alternative may be shown on the diagram, but the solution severity calculations (and resulting ordering of solutions) includes only the issues associated with the default (i.e., best, least severe) alternative.
Characteristics
Characteristic | Value |
---|---|
Time Context | Recent |
Spatial Context | Regional |
Acknowledgement | True |
Cardinality | Unicast |
Initiator | Source |
Authenticable | True |
Encrypt | False |
Interoperability | Description |
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Regional | Interoperability throughout the geopolitical region is highly desirable, but if implemented differently in different transportation management jurisdictions, significant benefits will still accrue in each jurisdiction. Regardless, this Information Flow Triple should be implemented consistently within a transportation jurisdiction (i.e., the scope of a regional architecture). |
Security
Information Flow Security | ||||
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Confidentiality | Integrity | Availability | ||
Rating | Low | Moderate | Moderate | |
Basis | The result of this will be directly observable. | Invalid messages could lead to an unauthorized user gaining transit signal priority at an intersection. This could also be used to delay traffic, which could lead to a financial impact on the community. However, the traffic signal will have controls in place to ensure that it does not display an illegal configuration (such as green in every direction). | These messages are important to help with the transit signal priority application. Without them, it will not work. However, if these signals are not received, the ITS RE will continue to function using its default configuration. The Transit Management Center should have an acknowledgement of the receipt of a message. |
Security Characteristics | Value |
---|---|
Authenticable | True |
Encrypt | False |