ITS Roadway Equipment --> Traffic Management Center:
rail crossing status
Definitions
rail crossing status (Information Flow): Status of the highway-rail intersection equipment including both the current state or mode of operation and the current equipment condition.
ITS Roadway Equipment (Source Physical Object): 'ITS Roadway Equipment' represents the ITS equipment that is distributed on and along the roadway that monitors and controls traffic and monitors and manages the roadway. This physical object includes traffic detectors, environmental sensors, traffic signals, highway advisory radios, dynamic message signs, CCTV cameras and video image processing systems, grade crossing warning systems, and ramp metering systems. Lane management systems and barrier systems that control access to transportation infrastructure such as roadways, bridges and tunnels are also included. This object also provides environmental monitoring including sensors that measure road conditions, surface weather, and vehicle emissions. Work zone systems including work zone surveillance, traffic control, driver warning, and work crew safety systems are also included.
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:
- TM13: Standard Railroad Grade Crossing
- TM14: Advanced Railroad Grade Crossing
- TM15: Railroad Operations Coordination
This triple is associated with the following Functional Objects:
- Roadway Advanced Rail Crossing
- Roadway Standard Rail Crossing
- TMC Advanced Rail Crossing Management
- TMC Standard Rail Crossing Management
This Triple is described by the following Functional View Data Flows:
- hri_guidance_for_roadway_info
- hri_status
- hri_traffic_data
- rail_operations_message
- traffic_management_request
This Triple has the following triple relationships:
None |
Communication Solutions
- (None-Data) - Secure Internet (ITS) (32)
Selected Solution
Solution Description
ITS Application Entity
Development needed |
Click gap icons for more info.
|
||
Mgmt
|
Facilities
Development needed |
Security
|
|
TransNet
|
|||
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 | Local |
Acknowledgement | False |
Cardinality | Unicast |
Initiator | Destination |
Authenticable | True |
Encrypt | True |
Interoperability | Description |
---|---|
Local | In cases where an interface is normally encapsulated by a single stakeholder, interoperability is still desirable, but the motive is vendor independence and the efficiencies and choices that an open standards-based interface provides. |
Security
Information Flow Security | ||||
---|---|---|---|---|
Confidentiality | Integrity | Availability | ||
Rating | Moderate | Moderate | Moderate | |
Basis | This information could be of interest to a malicious individual who is attempting to determine the best way to accomplish a crime. As such it would be best to not make it easily accessible. | If this is compromised, it could send unnecessary maintenance workers, or suggest actions that are incorrect for the true situation. | This information is important, but if it is not reported there are other safety systems that should prevent related incidents. The impact of any rail/road intersection is particularly high, but in this case a MODERATE rating can be justified by the alternative mechanisms. |
Security Characteristics | Value |
---|---|
Authenticable | True |
Encrypt | True |