American Association of State Highway and Transportation Officials (American Association Of State Highway and Transportation Officials)

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AASHTO guidelines for traffic data programs
AASHTO guidelines for traffic data programs
ISBN 9781560510543 
Unknown Binding, American Association of State Highway and Transportation Officials, 1992
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Roadside Design Guide
Roadside Design Guide
ISBN 9781560515098 
Hardcover, Amer Assn of State Hwy, 2011
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