Interface: Local Transit Vehicles - CVG Airport Connected Vehicle Roadside Equipment

Local Transit Vehicles to CVG Airport Connected Vehicle Roadside Equipment Interface Diagram

Information Flow Definitions

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.

intersection status  (Planned)  Selected Comm Solution

Current signal phase and timing information for all lanes at a signalized intersection. This flow identifies active lanes and lanes that are being stopped and specifies the length of time that the current state will persist for each lane. It also identifies signal priority and preemption status and pedestrian crossing status information where applicable.

local signal priority request  (Planned)  Selected Comm Solution

Request from a vehicle to a signalized intersection for priority at that intersection. This flow also allows the vehicle to cancel a priority request (for example, when the vehicle clears the intersection).

signal priority status  (Planned)  Selected Comm Solution

In response to a request for signal priority, this flow indicates the status of the priority or preemption request.

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 path prediction  (Planned)  Selected Comm Solution

The predicted future vehicle path of travel. This flow includes an indication of the future positions of the transmitting vehicle that can be used by receiving vehicles to support coordinated driving maneuvers and enhance in–lane and out–of–lane threat classification.

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).

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