Wichita Transit Vehicles

Interconnects - Flows - Entities - Services - Functional Requirements

Definition:

This elements represents the transit vehicles that are dispatched by Wichita Transit. These transit vehicles have ITS devices that support the safe and efficient movement of passengers. These systems collect, manage, and disseminate transit-related information to the driver, operations and maintenance personnel, and transit system patrons.

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Systems Interconnected
with the Wichita Transit Vehicles

Wichita Transit Operations Center

Interconnect Diagram

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Architecture Flow Diagrams
which include Wichita Transit Vehicles:

• Wichita Transit Vehicles Wichita Transit Operations Center

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Architecture Flows
to/from the Wichita Transit Vehicles:

Wichita Transit VehiclesWichita Transit Operations Center

• alarm notification


• fare and payment status


• request for bad tag list


• transit traveler request


• transit vehicle conditions


• transit vehicle location data


• transit vehicle operator authentication information


• transit vehicle passenger and use data


• transit vehicle schedule performance

Wichita Transit Operations CenterWichita Transit Vehicles

• alarm acknowledge


• bad tag list


• fare management information


• remote vehicle disable


• request for vehicle measures


• transit schedule information


• transit traveler information


• transit vehicle operator authentication update


• transit vehicle operator information

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National ITS Architecture Subsystems
mapped to the Wichita Transit Vehicles:

• Transit Vehicle Subsystem

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National ITS Architecture Services
associated with Wichita Transit Vehicles:

• APTS1 - Wichita Transit Vehicle Tracking -- (Graphic)
• APTS3 - Wichita Demand Response Transit Operations -- (Graphic)

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National ITS Architecture Functional Requirements
associated with Wichita Transit Vehicles:

1. The transit vehicle shall compute the location of the transit vehicle based on inputs from a vehicle location determination function.
2. The transit vehicle shall support the computation of the location of a transit vehicle using on-board sensors to augment the location determination function. This may include proximity to the transit stops or other known reference points as well as recording trip length.
3. The transit vehicle shall record transit trip monitoring data including vehicle mileage and fuel usage.
4. The transit vehicle shall record transit trip monitoring data including operational status information such as doors open/closed, passenger loading, running times, etc.
5. The transit vehicle shall send the transit vehicle trip monitoring data to center-based trip monitoring functions.

1. The transit vehicle shall receive transit route information for its assigned route including transit service instructions, traffic information, road conditions, and other information for the operator.
2. The transit vehicle shall use the route information and its current location to determine the deviation from the predetermined schedule.
3. The transit vehicle shall calculate the estimated times of arrival (ETA) at transit stops.
4. The transit vehicle shall determine scenarios to correct the schedule deviation.
5. The transit vehicle shall provide the schedule deviations and instructions for schedule corrections to the transit vehicle operator if the deviation is small, or the transit vehicle is operating in an urban area.
6. The transit vehicle shall send the schedule deviation and estimated arrival time information to the center.
7. The transit vehicle shall support the operations of a flexible route service. This may include requests for route deviations that would then lead to schedule corrective actions.

1. The transit vehicle shall manage data input to sensor(s) on-board a transit vehicle to determine the vehicle's availability for use in demand responsive and flexible-route transit services based on identity, type, and passenger capacity.
2. The transit vehicle shall receive the status of demand responsive or flexible-route transit schedules and passenger loading from the transit vehicle operator.
3. The transit vehicle shall provide the transit vehicle operator instructions about the demand responsive or flexible-route transit schedule that has been confirmed from the center.

1. The transit vehicle shall detect embarking travelers on-board a transit vehicle and read data from the traveler card / payment instrument that they are carrying.
2. The transit vehicle shall calculate the traveler's fare based on the origin and destination provided by the traveler as well as factors such as the transit routing, transit fare category, traveler history, and route-specific information.
3. The transit vehicle shall have access to the complete range of transit services (routes and schedules) that are available to the traveler.
4. The transit vehicle shall provide a transit fare payment interface that is suitable for travelers with physical disabilities.
5. The transit vehicle shall include a database on-board the transit vehicle for use in fare processing from which the fares for all possible trips within the transit operational network can be determined.
6. The transit vehicle shall support an emergency fare structure overriding all other fares that can be activated during disasters, states of emergency or evacuations.
7. The transit vehicle shall provide passenger loading and fare statistics data to the center.

1. The transit vehicle shall perform video and audio surveillance inside of transit vehicles and output raw video or audio data for either local monitoring (for processing or direct output to the transit vehicle operator), remote monitoring or for local storage (e.g., in an event recorder).
2. The transit vehicle shall perform local monitoring of video or audio surveillance data collected inside of transit vehicles, and identify potential incidents or threats based on received processing parameters.
3. The transit vehicle shall detect potential threats via sensors for chemical agents, toxic industrial chemicals, biological agents, explosives, and radiation.
4. The transit vehicle shall detect potential threats via object detection sensors (e.g. metal detectors).
5. The transit vehicle shall accept emergency inputs from either the transit vehicle operator or a traveler through such interfaces as panic buttons, silent or audible alarms, etc.
6. The transit vehicle shall output reported emergencies to the center.
7. The transit vehicle shall receive acknowledgments of the emergency request from the center and output this acknowledgment to the transit vehicle operator or to the travelers.
8. The transit vehicle shall be capable of receiving an emergency message for broadcast to the travelers or to the transit vehicle operator.
9. The transit vehicle shall perform authentication of the transit vehicle operator.

1. The transit vehicle shall determine the schedule deviation and estimated times of arrival (ETA) at transit stops.
2. The transit vehicle shall send priority requests to traffic signal controllers at intersections, pedestrian crossings, and multimodal crossings on the roads (surface streets) and freeway (ramp controls) network that enable a transit vehicle schedule deviation to be corrected.
3. The transit vehicle shall send the schedule deviation data and status of priority requests to the transit vehicle operator.

1. The transit vehicle shall broadcast advisories about the imminent arrival of the transit vehicle at the next stop via an on-board automated annunciation system.
2. The transit vehicle shall support input and output forms that are suitable for travelers with physical disabilities.
3. The transit vehicle shall gather transit advisory data, including alerts and advisories pertaining to major emergencies, or man made disasters.
4. The transit vehicle shall tailor the output of the request traveler information based on the current location of the transit vehicle.