Interface: ETHRA Transit Dispatch Center - ETHRA Demand-Response Vehicles
![ETHRA Transit Dispatch Center to ETHRA Demand-Response Vehicles Interface Diagram](../../images/ifs/if24-90.gif)
Architecture Flow Definitions
alarm acknowledge (Existing) Applicable ITS Standards
Confirmation that alarm was received, instructions and additional information for the alarm initiator, and requests for additional information.
alarm notification (Existing) Applicable ITS Standards
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.
demand response passenger and use data (Planned)
Data collected on board a demand response vehicle relating to the picking up and discharging of passengers.
request for vehicle measures (Planned) Applicable ITS Standards
Request for vehicle performance and maintenance data collected by onboard sensors.
transit vehicle conditions (Planned) Applicable ITS Standards
Operating conditions of transit vehicle (e.g., engine running, oil pressure, fuel level and usage).
transit vehicle location data (Existing) Applicable ITS Standards
Current transit vehicle location and related operational conditions data provided by a transit vehicle.
transit vehicle operator information (Planned) Applicable ITS Standards
Transit service instructions, wide area alerts, traffic information, road conditions, and other information for both transit and paratransit operators.
transit vehicle schedule performance (Existing) Applicable ITS Standards
Estimated times of arrival and anticipated schedule deviations reported by a transit vehicle.