January/February
2001
A
R T I C L E S
Learning to Beat Snow and Ice
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.
Safe Plowing - Applying Intelligent Vehicle
Technology
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.
Improving Roadside Safety by Computer Simulation
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.
Using the Computer and DYNA3D to Save Lives
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.
LS-DYNA: A Computer Modeling Success Story
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.
Preservation of Wetlands on the Federal-Aid
Highway System
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.
Internal FHWA Partnership Leverages Technology
and Innovation
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.
New Applications Make NDGPS More Pervasive
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.
Center for Excellence in Advanced Traffic
and Logistics Algorithms and Systems (ATLAS)
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.
National Work Zone Awareness Week (April
9 to 12) - Enhancing Safety and Mobility in Work Zones
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.