District of Columbia ITS Architecture

Interface: Private Traveler Vehicles and Regional Electronic Toll 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 Vehicles	vehicle payment information (P)	Regional Electronic Toll System
Regional Electronic Toll System	vehicle payment update (P) vehicle payment request (P)	Private Traveler Vehicles