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FHWA Functional Classification Guidelines

Note: This publication was updated in 2013. This version is for archival purposes. For the current version, see

Revised in 1989, this document was electronically scanned in April, 2000. The scanned image wa s processed through Optical Character Recognition software, the resulting text being formatted for the World Wide Web. Changes are restricted to:

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Updated: 10/7/2013
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