District of Columbia ITS Architecture

Interface: Private Traveler Information Device and District Traveler 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	traveler request (P) traveler profile (P)	District Traveler Information System
District Traveler Information System	traveler alerts (P) interactive traveler information (P) broadcast traveler information (P)	Private Traveler Information Device