Featuring developments in Federal highway policies, programs, and research and technology.
|This magazine is an archived publication and may contain dated technical, contact, and link information.|
|Federal Highway Administration > Publications > Public Roads > Vol. 64 · No. 4 > Articles|
by Deborah Vocke
More than 1,500 people from 36 states and 14 nations participated in the 5th Annual Eastern Winter Road Maintenance Symposium and Equipment Expo.
by Robert A. Ferlis, Shahed Rowshan, and Cathy Frye
The California and Minnesota departments of transportation use the Global Positioning System, a geo-spatial database, radar, and intelligent vehicle technologies to enable snowplow operators to "see" snow-covered roads and obstacles.
by Dean L. Sickling and King K. Mak
Computer simulation of vehicular impacts is rapidly developing as a reliable alternative to full-scale crash testing.
by Martin W. Hargrave and David Smith
Within the past decade, FHWA has led a program focused on employing and expanding the capabilities of a new crash analysis tool, DYNA3D. DYNA3D is a non-linear finite element code that can be used with the computer to replicate three-dimensional motor vehicle crashes.
by John D. Reid, Martin W. Hargrave, and S. Lawrence Paulson
When the bullnose guardrail system failed a crash test, researchers went back to the drawing board - or rather, back to LS-DYNA, a complex computer analysis system - to find the solution.
by Kirstyn White
FHWA is moving steadily toward its goal of achieving a 50-percent increase in wetlands acreage resulting from federal-aid highway projects from 1998 to 2008.
by Bob Bryant
Two organizations within FHWA - the Research, Development, and Technology Service Business Unit and the Federal Lands Highway Core Business Unit - have a rich history and a continuing program of internal partnering to enhance FHWA's research and technology delivery to the agency's customers.
by James A. Arnold
The Nationwide Differential Global Positioning System offers such a dramatic improvement in the accuracy of positioning information obtained via radio signals emitted by the 24 Global Positioning System satellites orbiting the earth that it makes possible a myriad of new applications and enables other technologies to function at improved levels.
by David Gibson, Alan Hansen, and Pitu Mirchandani
The University of Arizona with the support of FHWA established a center of excellence for the research and development of algorithms, software, and systems to advance the state of the art and the state of the practice in traffic management systems and logistics management systems.
In a continuing effort to promote safety and mobility in work zones, FHWA, ATSSA, and AASHTO will sponsor the second annual National Work Zone Awareness Week from April 9 to 12, 2001.
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