Interface: KYTC District 6 Maintenance Vehicles - ODOT / KYTC Connected Vehicle Roadside Equipment

KYTC District 6 Maintenance Vehicles to ODOT / KYTC Connected Vehicle Roadside Equipment Interface Diagram

Information Flow Definitions

access permission  (Planned)  Selected Comm Solution

Information returned indicating whether permission for access is granted and instructions for proceeding.

access request  (Planned)  Selected Comm Solution

Request for access to an access–controlled transportation facility.

barrier system status  (Planned)  Selected Comm Solution

Current operating status of barrier systems. Barrier systems represent gates, barriers and other automated or remotely controlled systems used to manage entry to roadways. Status of the systems includes operating condition and current operational state.

intersection geometry  (Planned)  Selected Comm Solution

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.

location correction  (Planned)  

Information provided to improve positional accuracy. These corrections allow a mobile GPS receiver, such as a GPS system in a connected vehicle, to achieve a
greater absolute positional accuracy, compensating for errors that exist in satellite positioning.

map updates  (Planned)  Selected Comm Solution

Map update that could include a new underlying static or real–time map or map layer(s) update. Map layers can include highways, major roads, streets, public transport routes, pedestrian routes, topography, points of interest, and regulatory information including turn restrictions and speed limits.

road closure information  (Planned)  Selected Comm Solution

Road closure information provided to passing vehicles. This flow provides information about the road closure with diversion information.

roadway geometry  (Planned)  Selected Comm Solution

The physical geometry of a road segment that specifies the location and width of each lane, including normal lanes as well as special lanes for pedestrians and bicycles, transit vehicles, and trains. This flow also may include the curvature, grade, and superelevation or banking of the road segment.

vehicle environmental data  (Planned)  Selected Comm Solution

Data from vehicle safety and convenience systems that can be used to estimate environmental and infrastructure conditions, including measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, anti–lock brake status, vertical acceleration 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 location and motion  (Planned)  Selected Comm Solution

Data describing the vehicle's location in three dimensions, heading, speed, acceleration, braking status, and size.

vehicle location and motion for surveillance  (Planned)  Selected Comm Solution

Data describing the vehicle's location in three dimensions, heading, speed, acceleration, braking status, and size. This flow represents monitoring of basic safety data ('vehicle location and motion') broadcast by passing connected vehicles for use in vehicle detection and traffic monitoring applications.

vehicle signage data  (Planned)  Selected Comm Solution

In–vehicle signing data that augments regulatory, warning, and informational road signs and signals. The information provided would include static sign information (e.g., stop, curve warning, guide signs, service signs, and directional signs) and dynamic information (e.g., local traffic and road conditions, lane restrictions, work zones, detours, closures, advisories, and warnings).

vehicle situation data parameters  (Planned)  Selected Comm Solution

A request for vehicle situation data that includes parameters used to control the data that is reported and the flow of data reported by the vehicle. This flow identifies the type of data/snapshots that are requested and reporting parameters such as snapshot frequency, filtering criteria (data thresholds for reporting), and reporting interval.

work zone warning notification  (Planned)  Selected Comm Solution

Notification of a work zone emergency or safety issue. This flow identifies that a work zone emergency or safety issue has occurred so that warnings may be generated by more than one system in the work zone.

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