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AASHTO-American Association of State Highway and Transportation Officials
American Association of State Highway and Transportation Officials (AASHTO) Standards
The American Association of State Highway and Transportation Officials (AASHTO) is a leading organization that develops and publishes technical standards, specifications, guidelines, and industry resources for the transportation sector.
AASHTO standards cover a wide range of applications, including highway design, road construction, bridge engineering, transportation infrastructure, maintenance, public transit, railways, aviation, and water transportation.
Engineers, contractors, transportation agencies, and industry professionals rely on AASHTO publications to support infrastructure planning, design, construction, inspection, and maintenance while promoting safety, quality, and consistency across transportation projects.
At e-Standards Portal, you can explore AASHTO standards, technical specifications, and related publications to find the technical information you need for your engineering and transportation projects.
AASHTO VE-4-2017 PDF
AASHTO VE-4, Guidelines for Value Engineering, 2017 Edition, sets out guidance for establishing and ..
AASHTO VLVLR-2-2019 PDF
AASHTO VLVLR-2, Guidelines for Geometric Design of Low-Volume Roads, Second Edition (2019), addresse..
AASHTO WFT-2-2026 PDF
This report covers the key issues and challenges related to the maritime freight transportation syst..
AASHTO WL-1-2009 PDF
AASHTO WL-1, Guidelines for the Selection and Application of Warning Lights on Roadway Operations Eq..
AASHTO WMTD-1-1996 PDF
This guide can assist in planning and decision making regarding the alternatives available when impa..
Commuting in America 2013 - Brief 10: Commuting Mode Choice PDF
This brief is the tenth in a series of briefs that constitute a body of knowledge describing commuti..
Commuting in America 2013 - Brief 11: Commuting Departure Time and Trip Time PDF
This brief is the eleventh in a series of briefs that constitute a body of knowledge describing comm..
Commuting in America 2013 - Brief 12: Auto Commuting PDF
This brief is the twelfth in a series of briefs that constitute a body of knowledge describing commu..
Commuting in America 2013 - Brief 13: Transit Commuting PDF
This brief is the thirteenth in a series of briefs that constitute a body of knowledge describing co..
Commuting in America 2013 - Brief 14: Bicycling and Walk Commuting PDF
This brief is the fourteenth in a series of briefs that constitute a body of knowledge describing co..