District of Columbia ITS Architecture

Interface: Private Traveler Information Device and DDOT PTSA Customer Information System

(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
Private Traveler Information Device	trip request (P) traveler request (P) traveler profile (P)	DDOT PTSA Customer Information System
DDOT PTSA Customer Information System	trip plan (P) interactive traveler information (P) broadcast traveler information (P)	Private Traveler Information Device