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AASHTO Journal

State DOTs Helping Out with Hurricane Florence Recovery Efforts

Sep 21, 2018
State department of transportation workers, national guardsmen, and a host of other federal, state, and local personnel fanned ...

Federal Court Grants Temporary Stay of Air Quality ‘Do-Over’ Decision

Sep 21, 2018
The U.S. Court of Appeals for the District of Columbia Circuit agreed on Sept. 17 to delay implementation ...

Direct from the Source

Releases from AASHTO and State DOTs

AASHTO Directors Choose Jim Tymon for Executive Director

Sep 24, 2018
ATLANTA – Following an intensive, multi-month search, James J. Tymon was selected to become the sixth executive director of ...

New AASHTO President Says Workforce and Funding Issues Top His Priority List

Sep 24, 2018
Utah DOT’s Carlos Braceras Elected AASHTO President, Missouri DOT’s Patrick McKenna VP ​ ATLANTA – Today, the board ...

Two States Earn Top Awards in National Transportation Competition

Sep 23, 2018
ATLANTA –An innovative fix for a congestion-plagued interchange connecting people to some of Chicago’s most popular destinations ...

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Multi-modal design philosophies have been described using a variety of names, including context sensitive solutions; practical design and complete streets. Regardless of the name, the ultimate goal is always to design a safe transportation system that supports a greater quality of life and robust economy.

Bud WrightAASHTO Executive Director

Featured Publication

  • A Policy on Geometric Design of Highways and Streets, 7th Edition, Single User PDF Download

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    A Policy on Geometric Design of Highways and Streets, 7th Edition, 2018, commonly referred to as the “Green Book,” contains the current design research and practices for highway and street geometric design. This edition presents an updated framework for geometric design that is more flexible, multimodal, and performance-based than in the past. The document provides guidance to engineers and designers who strive to make unique design solutions that meet the needs of all highway and street .....
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  • AASHTO LRFD Bridge Construction Specifications, 4th Edition

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    The AASHTO LRFD Bridge Construction Specifications are intended for use in the construction of bridges. The specifications employ the Load and Resistance Factor Design (LRFD) methodology, and are designed to be used in conjunction with the AASHTO LRFD Bridge Design Specifications. Revisions from the 3rd edition of this title include a complete revision of Section 3, Temporary Works, and changes to Section 10, Prestressing; Section 11, Steel Structures; Section 19, Bridge Deck Joint Seals; and Section 27, Concrete Culverts.
  • AASHTO LRFD Bridge Design Specifications, 8th Edition

    MBI-2 Cover Final_TTV
    These specifications cover the design, evaluation, and rehabilitation of highway bridges. The design provisions of these specifications employ the Load and Resistance Factor Design (LRFD) methodology, which is based on structural reliability theory, and calibrated to achieve a target level of reliability. Updates to this edition include: * A completely updated and revised Section 5 on Concrete Structures (Appendix E5, comparing the 7th and 8th Edition versions of this Section can be downloaded below) * New, simplified steel .....
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  • Manual for Assessing Safety Hardware, Second Edition, Single User PDF Download

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    This manual encourages consistency in testing and evaluation of roadside safety features. It includes a new matrix for cable barrier testing on slopes, modifications to several test vehicle dimensions, and updated test documentation requirements.
  • Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and AASHTO Provisional Standards, Single User Web-Based One-Year Subscription

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    The AASHTO Materials Standards contain specifications, test methods, and provisional standards commonly used in the construction of highway facilities. They are available as a one-year online subscription. When you subscribe, you will automatically receive access to all updates published during your subscription period, as well as access to recent past editions, with changes between editions highlighted for ease of reference. The Materials Standards are updated three times per year, in mid-April, mid-June, and mid-August. * The .....
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About AASHTO

AASHTO – The American Association of State Highway Transportation Officials – is a nonprofit, nonpartisan association representing highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico. It represents all five transportation modes: air, highways, public transportation, rail, and water. Its primary goal is to foster the development, operation, and maintenance of an integrated national transportation system.

AASHTO works to educate the public and key decision makers about the critical role that transportation plays in securing a good quality of life and sound economy for our nation. AASHTO serves as a liaison between state departments of transportation and the Federal government. AASHTO is an international leader in setting technical standards for all phases of highway system development. Standards are issued for design, construction of highways and bridges, materials, and many other technical areas.