Interface: MTS Buses - Level 2 Cities Connected Vehicle Equipment
Information Flow Definitions
access violation notification (Planned)
Notification that an individual vehicle or user has committed an access violation. The flow identifies the nature of the violation and the time and location where the violation was recorded.
intersection geometry (Planned)
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 infringement info (Planned)
Vehicle path information sent by a vehicle that is performing an unpermitted movement at an intersection such as a stop sign violation or running a red light. This also includes information about possible conflicts with other road users in the vehicle's path, including a range of uncontrolled intersection scenarios that could be covered by this flow. This flow does not include permanent ids; only temporary ones that allow monitoring of the vehicle as it moves across the intersection.
intersection safety warning (Planned)
A warning of an imminent unsafe vehicle infringement at an intersection that may endanger other vehicles or pedestrians. This allows vehicles approaching the intersection to be warned in the event of an imminent red light or stop sign violation or potential infringement on an occupied crosswalk. All connected vehicles and personal devices near the intersection receive the warning.
intersection status (Planned)
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)
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).
proxied personal location (Planned)
Relay of pedestrian, bicyclist, and other non–motorized user locations at an intersection. This relay or rebroadcast of personal locations supports coordination between motorized and non–motorized users that do not have interoperable communications capability.
restricted lanes information (Planned)
This flow defines the location, duration, and operating parameters for lanes that are reserved for the exclusive use of certain types of vehicles (e.g., transit vehicles) or vehicles that meet other qualifications (e.g., number of occupants, low emissions criteria). It identifies the lane(s), the start and stop locations, start and end times, vehicle restrictions, speed limits and platooning parameters.
signal priority status (Planned)
In response to a request for signal priority, this flow indicates the status of the priority or preemption request.
vehicle location and motion (Planned)
Data describing the vehicle's location in three dimensions, heading, speed, acceleration, braking status, and size.
vehicle profile (Planned)
Information about a vehicle such as vehicle make and model, fuel type, engine type, size and weight, vehicle performance and level of control automation, average emissions, average fuel consumption, passenger occupancy, or other data that can be used to classify vehicle eligibility for access to specific lanes, road segments, or regions or participation in cooperative vehicle control applications.
vehicle signage data (Planned)
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).