Interface: C-TRAN Transit Operations Center - C-TRAN Transit Vehicles
Information Flow Definitions
alarm acknowledge (Existing) Selected Comm Solution
Confirmation that alarm was received, instructions and additional information for the alarm initiator, and requests for additional information.
alarm notification (Existing) Selected Comm Solution
Notification of activation of an audible or silent alarm by a traveler in a public area or by a transit vehicle operator using an on–board device.
authorization request (Existing)
Request to determine if a transportation user is authorized to use a particular transportation resource.
authorization response (Existing)
Notification of status of authorization request.
connection protection instructions (Planned)
A request to hold at a specific stop for a specified time period to protect connections. This flow would also include subsequent adjustments to, or cancellation of, a hold request.
demand response passenger and use data (Existing) Selected Comm Solution
Data collected on board a demand response vehicle relating to the picking up and discharging of passengers.
electric charging services inventory (Future)
Aggregate information provided for electric charging stations identifying the location, operating hours, current availability, charging capacity and standards supported, access restrictions, and rates/fee structure for each station.
emergency traveler information (Existing)
Public notification of an emergency such as a natural or man–made disaster, civil emergency, or child abduction. This flow also includes evacuation information including evacuation instructions, evacuation zones, recommended evacuation times, tailored evacuation routes and destinations, traffic and road conditions along the evacuation routes, traveler services and shelter information, and reentry times and instructions.
fare collection data (Existing) Selected Comm Solution
Fare collection information including the summary of fare system data and financial payment transaction data.
fare management information (Existing) Selected Comm Solution
Transit fare information and transaction data used to manage transit fare processing.
intersection status (Future)
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.
remote vehicle disable (Future) Selected Comm Solution
Signal used to remotely disable a transit vehicle.
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.
transfer request (Planned)
A traveler request for a transfer between transit routes, services, or modes. The request may also include preferences such as a need for extra connection time or connection protection in the event of a delay.
transfer status (Planned)
Information indicating whether a requested transfer can be confirmed including specific information about the connection including fare payment information. Real–time updates are provided if the transfer status changes up to and including a reminder just prior to the transfer. In the event that a requested transfer is not feasible, alternatives including other transit, rideshare, and taxi options are provided.
transit schedule information (Existing) Selected Comm Solution
Current and projected transit schedule information used to initialize the transit vehicle with a vehicle assignment, monitor schedule performance, and develop corrective actions on–board.
transit stop locations (Planned)
The current geographic location and dimensions of transit stops. This flow may also include the road geometry in the vicinity of the stops as needed to support transit vehicle safety applications when arriving at or departing from stops.
transit stop request (Planned)
Notification that a transit stop has been requested by a transit user at a roadside stop. This flow identifies the route, stop, and the time of the request.
transit traveler information (Future) Selected Comm Solution
Transit information prepared to support transit users and other travelers. It contains transit schedules, real–time arrival information, fare schedules, alerts and advisories, and general transit service information.
transit traveler request (Planned) Selected Comm Solution
Request by a Transit traveler to summon assistance, request transit information, or request any other transit services.
transit user information (Planned)
Information about individual transit users boarding a transit vehicle, used to track a user's progress on a scheduled transit trip.
transit vehicle conditions (Existing) Selected Comm Solution
Operating conditions of transit vehicle (e.g., engine running, oil pressure, fuel level and usage). It includes status of other on–board systems including user displays, passenger counters, and security systems. This overall status information is also collected from unused (out of service) vehicles.
transit vehicle emissions (Planned)
Greenhouse Gas (GHG) and criteria air pollutant emissions reported by a transit vehicle.
transit vehicle loading data (Existing) Selected Comm Solution
Data collected on board the transit vehicle relating to passenger boarding and alighting.
transit vehicle location data (Existing) Selected Comm Solution
Current transit vehicle location and related operational conditions data provided by a transit vehicle.
transit vehicle operator authentication information (Existing) Selected Comm Solution
Information regarding on–board transit operator authentication
transit vehicle operator authentication update (Future) Selected Comm Solution
Results of authentication process or update of on–board authentication database.
transit vehicle operator information (Existing) Selected Comm Solution
Transit service instructions, wide area alerts, traffic information, road conditions, and other information for both transit and paratransit operators.
transit vehicle schedule performance (Existing) Selected Comm Solution
Estimated times of arrival and anticipated schedule deviations reported by a transit vehicle.