District of Columbia ITS Architecture

Interface: DDOT TMC and DDOT PTSA

(E) = Existing Flow
(P) = Planned/Future Flow
(E/P) = Existing and Planned Flow - Flow appears as Existing and Planned

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Source	Architecture Flows	Destination
DDOT TMC	evacuation information (P) transportation system status (P) incident response status (P) emergency transit service request (P) emergency plan coordination (P) threat information (P) incident information (P) alert notification (P) road weather information (P) traffic control priority status (P) hri advisories (P) transit demand management request (P) request transit information (P) road network conditions (P)	DDOT PTSA
DDOT PTSA	transit system status assessment (P) emergency transit service response (P) emergency transit schedule information (P) emergency plan coordination (P) transit emergency data (P) alert status (P) traffic control priority request (P) railroad schedules (P) railroad advisories (P) transit system data (P) transit demand management response (P) transit probe data (P)	DDOT TMC