TMDD Standards Update Recommendations – Data Structures

This document provides a set of recommendations for modernization of the Traffic Management Data Dictionary (TMDD) (1), currently at version 3.1. These recommendations are based upon the following: Connected Corridors project experience; three previous technical memorandums provided under this project discussing the current and future state of transportation, the state of the supporting technology for information exchange, and a review of the TMDD standard; a gap analysis based on the three technical memorandums delivered as part of this project. The intention of this document is to inform the Institute of Transportation Engineers (ITE) committee responsible for TMDD, the California Department of Transportation (Caltrans), and users of the standard of potential improvements in the standard that should improve its ability to serve current and future transportation and traffic management needs