Vehicle OBE --> Roadside Equipment:
vehicle environmental data

Definitions

vehicle environmental data (Information Flow): Data from vehicle safety and convenience systems that can be used to estimate environmental conditions, including measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, anti-lock brake status, and other collected vehicle system status and sensor information. The collected data is reported along with the location, heading, and time that the data was collected. Both current data and snapshots of recent events (e.g., traction control or anti-lock brake system activations) may be reported.

Vehicle OBE (Source Physical Object): The Vehicle On-Board Equipment (OBE) provides the vehicle-based processing, storage, and communications functions necessary to support connected vehicle operations. The radio(s) supporting V2V and V2I communications are a key component of the Vehicle OBE. This communication platform is augmented with processing and data storage capability that supports the connected vehicle applications.

In CVRIA, the Vehicle OBE includes the functions and interfaces that support connected vehicle applications for passenger cars, trucks, and motorcycles. Many of these applications (e.g., V2V Safety applications) apply to all vehicle types including personal vehicles, commercial vehicles, emergency vehicles, transit vehicles, and maintenance vehicles. From this perspective, the Vehicle OBE includes the common interfaces and functions that apply to all motorized vehicles.

Roadside Equipment (Destination Physical Object): 'Roadside Equipment' (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 Information Flow is in the following Applications:

• Cooperative Adaptive Cruise Control
• Eco-Cooperative Adaptive Cruise Control
• Eco-Ramp Metering
• Eco-Speed Harmonization
• Eco-Traffic Signal Timing
• Enhanced Maintenance Decision Support System
• Intelligent Traffic Signal System
• Queue Warning
• Road Weather Information and Routing Support for Emergency Responders
• Road Weather Information for Freight Carriers
• Road Weather Motorist Alert and Warning
• Roadside Lighting
• Speed Harmonization
• Spot Weather Impact Warning
• Variable Speed Limits for Weather-Responsive Traffic Management

This Information Flow is in the following Application Objects:

• RSE Environmental Monitoring
• RSE Lighting System Support
• RSE Speed Warning
• Vehicle Basic Safety
• Vehicle Environmental Monitoring
• Vehicle Roadside Information Reception

Communication Diagrams

The communication diagram(s) can be viewed in SVG or PNG format and the current format is SVG. Switch to SVG format. PNG format.

This profile describes a set of standards applicable to broadcast, near constant, low latency vehicle- to-vehicle and vehicle-to-infrastructure communications using the WAVE Short Messaging Protocol (WSMP) over the 5.9GHz spectrum.

Characteristics

Architectural:

Security

This information flow triple is in the following applications with the following security levels.