Link Type: Human Interface
ITS Roadway Equipment --> Driver:
driver information
Definitions
driver information (Information Flow): Regulatory, warning, and guidance information provided to the driver while en route to support safe and efficient vehicle operation.
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 itself. In CVRIA, this physical object represents all of the other ITS field equipment that interfaces with and supports the Connected Vehicle Roadside Equipment (RSE). 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.
Driver (Destination Physical Object): The 'Driver' represents the person that operates a vehicle on the roadway. Included are operators of private, transit, commercial, and emergency vehicles where the interactions are not particular to the type of vehicle (e.g., interactions supporting vehicle safety applications). The Driver originates driver requests and receives driver information that reflects the interactions which might be useful to all drivers, regardless of vehicle classification. Information and interactions which are unique to drivers of a specific vehicle type (e.g., fleet interactions with transit, commercial, or emergency vehicle drivers) are covered by separate objects.
Included In
This Information Flow is in the following Applications:
- Curve Speed Warning
- Eco-Approach and Departure at Signalized Intersections
- Eco-Lanes Management
- Eco-Ramp Metering
- Eco-Speed Harmonization
- Eco-Traffic Signal Timing
- Incident Scene Work Zone Alerts for Drivers and Workers
- Intelligent Traffic Signal System
- Intermittent Bus Lanes
- In-Vehicle Signage
- Low Emissions Zone Management
- Oversize Vehicle Warning
- Pedestrian in Signalized Crosswalk Warning
- Queue Warning
- Railroad Crossing Violation Warning
- Red Light Violation Warning
- Reduced Speed Zone Warning / Lane Closure
- Restricted Lane Warnings
- Speed Harmonization
- Spot Weather Impact Warning
- Stop Sign Gap Assist
- Transit Vehicle at Station/Stop Warnings
- Variable Speed Limits for Weather-Responsive Traffic Management
- Warnings about Hazards in a Work Zone
- Warnings about Upcoming Work Zone
This Information Flow is in the following Application Objects:
- Roadway Advanced Rail Crossing
- Roadway Dynamic Lane Management and Shoulder Use
- Roadway Environmental Monitoring
- Roadway Infrastructure Restriction Warning
- Roadway Pedestrian Crossing Safety
- Roadway Signal Control
- Roadway Speed Monitoring and Warning
- Roadway Traffic Gap Assist
- Roadway Traffic Information Dissemination
- Roadway Variable Speed Limits
- Roadway Work Zone Safety
- Roadway Work Zone Traffic Control
Communication Diagrams
The destination physical object, "Driver", is a human interface and so there is no associated communications diagram for this triple.Characteristics
Architectural:
None defined |
Security
This information flow triple is in the following applications with the following security levels.
Information Flow Security | |||||
---|---|---|---|---|---|
Application | Confidentiality | Integrity | Availability | ||
Basis | Basis | Basis | |||
Incident Scene Work Zone Alerts for Drivers and Workers | Not Applicable | Moderate | Moderate | ||
This data is sent to all drivers. | There are currently other visual and auditory indicators of an incident. Police will park their car with the lights (and possibly siren) on to indicate that a lane is closed. If incorrect information is sent to the driver, they will still have other cues indicating that an incident has occurred. If the current indicators are fully replaced by this system, then this would be raised to a HIGH. | There are currently other visual and auditory indicators of an incident. Police will park their car with the lights (and possibly siren) on to indicate that a lane is closed. If incorrect information is sent to the driver, they will still have other cues indicating that an incident has occurred. If the current indicators are fully replaced by this system, then this would be raised to a HIGH. | |||
Pedestrian in Signalized Crosswalk Warning | Not Applicable | High | Moderate | ||
This data is intentionally transmitted to everyone via a broadcast. | This is the primary signal trusted by the driver to decide whether to go through the intersection and what speed to go through the intersection at; if it's wrong, accidents could happen. | If the lights are out you have to get a policeman to direct traffic – expensive and inefficient and may cause a cascading effect due to lack of coordination with other intersections. |