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Description / Abstract:
Preface
The 2009 AASHTO Transportation Glossary is an update and
revision of the 1983 Transportation Glossary and the 1998
Transportation Glossary, which was unpublished. The greatest number
of additions in terminology are related to bridge and drainage
subjects. The new glossary also includes lists of organizational
acronyms, abbreviations, and other glossary references.
Terms and definitions in this glossary were taken from an
unpublished 1998 AASHTO Glossary and supplemented with definitions
listed in AASHTO publications issued after 1998. Several additional
sources were also referenced, including the Highway Capacity
Manual, Manual on Uniform Traffic Control Devices, Code of Federal
Regulations–Title 23, a Federal Highway Administration (FHWA)
list of roundabout terminology, and the Transportation Research
Thesaurus.
Glossary terms are listed in alphabetical order regardless of
transportation mode. The glossary also includes two indexes—subject
area and keyword— that provide cross references for the user.