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Office of the Assistant Secretary for Research and Technology
ITS Joint Program Office

ITS Standards

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ITS Standards have been developed for many of the architecture flows in the National ITS Architecture. Click on the standard(s) to view the architecture flows and their communication requirements. More...

ITE TMDD Traffic Management Data Dictionary (TMDD) Standard for Center to Center Communications

This document contains data elements for roadway links and for incidents and traffic-disruptive roadway events. Includes data elements for traffic control, ramp metering, traffic modeling, video camera control traffic, parking management and weather forecasting, as well as data elements related to detectors, actuated signal controllers, vehicle probes, and dynamic message signs. The document also contains the message sets for communication between traffic management centers and other ITS centers, including information service providers, emergency management systems, missions management systems, and transit management systems.
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Current Published Version: Version 3.3d, Published in Dec 2016

Previous Development Activity: Version 03.03c: Published (Jul 2014); Version 3: Published (Nov 2008); Version 2.1: Published (Mar 2006)

National ITS Architecture