Map Update System --> Roadside Equipment:
intersection geometry

Definitions

intersection geometry (Information Flow): The physical geometry of an intersection covering the location and width of each approaching lane, egress lane, and valid paths between approaches and egresses. This flow also defines the location of stop lines, cross walks, specific traffic law restrictions for the intersection (e.g., turning movement restrictions), and other elements that support calculation of a safe and legal vehicle path through the intersection.

Map Update System (Source Physical Object): The 'Map Update System' represents a provider of map databases used to support ITS services. It supports the provision of the map data that are used directly by vehicles (e.g., roadway and intersection geometry data sets), travelers (e.g., navigable maps used for route guidance and display maps used at traveler information points), system operators (e.g., map data used by Traffic Operators to monitor and manage the road network, and map data used by Fleet Managers to manage a vehicle fleet). It may represent a third-party provider or an internal organization that produces map data for agency use. Products may include simple display maps, map data sets that define detailed road network topology and geometry, or full geographic information system databases that are used to support planning and operations.

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:

• Map Management

This Information Flow is in the following Application Objects:

• Map Management
• RSE Map Management

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 applicable standards for Center to Field communications with RSEs. Common internet standards (HTTPS and TCP) are used in this profile.




This profile identifies applicable standards for Center to Field communications with RSEs. This profile uses the Simple Network Management Protocol (SNMP), an Internet-standard protocol for managing devices on IP networks.

Characteristics

Architectural:

Security

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