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NCHRP 20-64 XML Schemas for the Exchange of Transportation Data     
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Project Overview

National Cooperative Highway Research Program (NCHRP) Project 20-64, XML Schemas for Exchange of Transportation Data , developed a set of Extensible Markup Language (XML) schema for transportation applications in a framework called TransXML.

The objectives of this project were to develop broadly accepted public domain XML schemas for exchange of transportation data, and a framework for development, validation, dissemination, and extension of current and future schemas. This project focused on four key business areas that have been identified as the ini­tial focus for AASHTOWare XML migration: 1) Survey/Roadway Design, 2) Transportation Construction/Materials, 3) Highway Bridge Structures, and 4) Transportation Safety. Ultimately TransXML will encompass a broader set of schemas for all crucial transportation business areas (including ITS, for example.)

Adoption of XML will provide a valuable foundation for data exchange among transportation applications. Equally important, by providing a common vocabulary and information structure for transportation agency activities and assets, TransXML can accelerate the development of new generations of applications that satisfy the increasingly-demanding requirements of transportation agencies.

The products of this project were a family of XML schemas for transportation applications, along with a recommended institutional structure and process for implementing and sustaining its use. The effectiveness of this institutional structure, and the extent to which the process brings about the necessary level of participation by agencies, vendors, and technical specialists, are crucial to achieving the benefits sought through TransXML.

NCHRP 20-64 concluded in September, 2006, with the release of the project Final Report.

Download the NCHRP 20-64 Final Report.

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