Featured Publications

• AASHTO Transportation Operations Manual, 1st Edition, Single User PDF Download

  

  This manual was created as a resource for transportation agencies to develop and sustain the operational capabilities and strategies needed to preserve and optimize transportation system .....
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• Manual on Subsurface Investigations, 2nd Edition, Single-User PDF Download

  

  This manual describes the elements, considerations, investigation tools and techniques, and reporting requirements for geotechnical subsurface investigations for transportation facilities. This second edition, which supersedes the 1988 .....
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• Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and AASHTO Provisional Standards, 42nd Edition, 2022, Single-User PDF Download

  

  The Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and AASHTO Provisional Standards (the "Materials Standards") contains specifications, recommended practices, and test methods .....
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• AASHTO Guide for the Planning, Design, and Operation of Pedestrian Facilities, 2nd Edition

  

  This guide provides guidance on the planning, design, and operation of pedestrian facilities along and across streets and highways. Specifically, the guide focuses on identifying effective .....
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• AASHTO LRFD Bridge Design Specifications, 9th Edition

  

  The AASHTO LRFD Bridge Design Specifications are intended for use in the design, evaluation, and rehabilitation of bridges. The specifications employ the Load and Resistance Factor .....
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