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  2. American Association of State Highway and Transportation ...

    en.wikipedia.org/wiki/American_Association_of...

    The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway design and construction throughout the United States. Despite its name, the association represents not only highways but air, rail, water, and public ...

  3. AASHTO Soil Classification System - Wikipedia

    en.wikipedia.org/wiki/AASHTO_Soil_Classification...

    The AASHTO Soil Classification System was developed by the American Association of State Highway and Transportation Officials, and is used as a guide for the classification of soils and soil-aggregate mixtures for highway construction purposes.

  4. Census Transportation Planning Products Program - Wikipedia

    en.wikipedia.org/wiki/Census_Transportation...

    CTPP data are available online and can be accessed using an online database housed on the CTPP website or downloaded via an FTP site. This portal contains the CTPP tabulations from the 1990 decennial census, the 2000 decennial census, the 2006-2010 5-year ACS, and 2012-2016 5-year ACS.

  5. National Cooperative Highway Research Program - Wikipedia

    en.wikipedia.org/wiki/National_Cooperative...

    The National Cooperative Highway Research Program was established in 1962 under TRB. Governments needed to tackle what Rex M. Whitton termed “clearly a supreme challenge to research”: moving people and goods in cities by using a fixed percentage of highway funding dedicated to research.

  6. Interstate Highway standards - Wikipedia

    en.wikipedia.org/wiki/Interstate_Highway_standards

    Public Safety Standards, United States (Federal Government) – Offers free downloads of documents, including AASHTO's "A Policy on Design Standards", that have been incorporated by reference into the US Code of Federal Regulations and can therefore be freely copied as edicts of government.

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    help.aol.com/products/aol-webmail

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  8. Geometric design of roads - Wikipedia

    en.wikipedia.org/wiki/Geometric_design_of_roads

    The primary US guidance is found in A Policy on Geometric Design of Highways and Streets published by the American Association of State Highway and Transportation Officials (AASHTO). [2] Other standards include the Australian Guide to Road Design Archived 2011-11-09 at the Wayback Machine, and the British Design Manual for Roads.

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