U.S. Department of Transportation
Federal Highway Administration
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Washington, DC 20590

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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

This report is an archived publication and may contain dated technical, contact, and link information

IMS Reference Materials

To understand the structure of the database and the data items included, three documents are needed:

These three documents are in ASCII format and occupy 5 MB of space. To download the zip file (463 KB), click here.