R

RACE	R & D in Advanced Communications Technologies for Europe (EC programme)
RARP	Rural Access Roads Programme
RCI	Roadway Congestion Index
RCU	Roadside Communicator Unit
RDS	Radio Data System
RDS-TMC	Radio Data System - Traffic Message Channel
RDSS	Radio Determination Satellite Services
REAAA	Road Engineering Association of Asia and Australasia
RHAPIT	RHein-Main Area Project for Integrated Traffic Management
RIMS	Regional Information Management System (LTPP)
RIN	Regulatory Identification Number
ROMANSE	A ROad MANagement System for Europe
RONETS	ROad NETwork Simulator (York University)
ROTIR	ROad Transport Informatics Review
ROW	Right of Way
RP	Road Pricing (see ERP)
RQCS	Reference Quarter Car Simulation
RT	Right Turn
RTAC	Road and Transport Association of Canada
RTDB	Regional Traffic Data Base (LTPP)
RTI	Road Transport Informatics
RTMS	Road Traffic Microwave Sensor
RTOR	Right Turn On Red
RTP	Regional Transportation Plan
RTPA	Regional Transportation Planning Agency
RTPI	Real Time Passenger Information
RTT	Road Transport Telematics
RVIA	Recreation Vehicle Industry Assoc.
RWIM	Roadway Weight-In-Motion
RWIS	Road Weather Information Systems
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