ITS Element: WMATA Transit Vehicles

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Description: This element represents the WMATA transit buses.
Status: Existing
Stakeholder: WMATA - Washington Metropolitan Area Transit Authority
Mapping: Transit Vehicle Subsystem

Interfaces:

DDOT Traffic Signals
WMATA Bus Operations Control Center
Market Packages: APTS09 - Transit Signal Priority - DDOT / WMATA
Functional Requirements:

On-board Transit Signal Priority

  • The transit vehicle shall determine the schedule deviation and estimated times of arrival (ETA) at transit stops.
  • 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.
  • The transit vehicle shall send the schedule deviation data and status of priority requests to the transit vehicle operator and provide the capability for the transit vehicle operator to control the priority system.
  • The transit vehicle shall prevent a priority request from being sent when the transit vehicle cannot use the priority (e.g., when the transit vehicle makes a passenger stop on the approach to an intersection).

Last updated: 06-10-11