ITS Roadway Equipment --> Connected Vehicle Roadside Equipment:
vehicle signage local data
Definitions
vehicle signage local data (Information Flow): Information provided by adjacent field equipment to support in-vehicle signing of dynamic information that is currently being displayed to passing drivers. This includes the dynamic information (e.g., local traffic and road conditions, work zone information, lane restrictions, detours, closures, advisories, parking availability, etc.) and control parameters that identify the desired timing, duration, and priority of the signage data.
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.
Connected Vehicle Roadside Equipment (Destination Physical Object): 'Connected Vehicle Roadside Equipment' (CV RSE) represents the Connected Vehicle roadside devices that are used to send messages to, and receive messages from, nearby vehicles using Dedicated Short Range Communications (DSRC) or other alternative wireless communications technologies. Communications with adjacent field equipment and back office centers that monitor and control the RSE are also supported. This device operates from a fixed position and may be permanently deployed or a portable device that is located temporarily in the vicinity of a traffic incident, road construction, or a special event. It includes a processor, data storage, and communications capabilities that support secure communications with passing vehicles, other field equipment, and centers.
Included In
This Triple is in the following Service Packages:
- MC06: Work Zone Management
- PT10: Intermittent Bus Lanes
- ST03: Eco-Traffic Metering
- ST06: HOV/HOT Lane Management
- ST07: Eco-Lanes Management
- ST10: Low Emissions Zone Management
- TI07: In-Vehicle Signage
- TM16: Reversible Lane Management
- TM17: Speed Warning and Enforcement
- TM21: Speed Harmonization
- TM22: Dynamic Lane Management and Shoulder Use
- TM24: Tunnel Management
- VS06: Stop Sign Gap Assist
- VS08: Queue Warning
- VS10: Restricted Lane Warnings
This triple is associated with the following Functional Objects:
- Roadway Emissions Monitoring
- Roadway HOV Control
- Roadway Reversible Lanes
- Roadway Speed Monitoring and Warning
- Roadway Traffic Gap Assist
- Roadway Traffic Information Dissemination
- Roadway Warning
- RSE Parking Management
- RSE Queue Warning
- RSE Traffic Gap Assist
- RSE Traveler Information Communications
This Triple is described by the following Functional View Data Flows:
- dynamic_lane_assignment_message
- emissions_zone_message_from_roadway
- f_other_rw_data_for_signage
- hri_data_for_signage_from_roadway
- individual_vehicle_speed_for_signage
- signage_stop_sign_warning_from_roadway
- signage_traffic_metering_data_from_roadway
- signage_variable_speed_data_from_roadway
This Triple has the following triple relationships:
Relationship | Source | Destination | Flow |
---|---|---|---|
Depends On | Connected Vehicle Roadside Equipment | ITS Roadway Equipment | traffic situation data |
Depends On | Traffic Management Center | ITS Roadway Equipment | lane management control |
Depends On | Traffic Management Center | ITS Roadway Equipment | roadway dynamic signage data |
Depends On | Traffic Management Center | ITS Roadway Equipment | roadway warning system control |
Communication Solutions
- US: NTCIP Message Sign - SNMPv3/TLS (5)
- (None-Data) - Secure Internet (ITS) (32)
- Data for Distribution (TBD) - Apache Kafka (36)
- Data for Distribution (TBD) - OMG DDS (36)
- Data for Distribution (TBD) - OASIS MQTT (42)
- Data for Distribution (TBD) - OASIS AMQP (45)
Selected Solution
Solution Description
ITS Application Entity
NTCIP 1203 |
Click gap icons for more info.
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Mgmt
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Facilities
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Security
IETF RFC 6353 |
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TransNet
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Access
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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 | Adjacent |
Acknowledgement | False |
Cardinality | Unicast |
Initiator | Destination |
Authenticable | True |
Encrypt | False |
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 | Low | Moderate | Moderate | |
Basis | This data is intentionally transmitted to everyone via a broadcast. It is meant to augment other signage data, and by definition is meant to be shared with everyone. | This information impacts the vehicle signage data sent to neighboring ASDs and should be trusted to avoid sending wrong information. DISC: WYO believes this to be HIGH. | The system should know if these messages are not received. |
Security Characteristics | Value |
---|---|
Authenticable | True |
Encrypt | False |