Articles in this Issue
Structures Repair Goes Ultrasonic
To increase the safety and useful life of your steel bridges and steel
traffic structures, consider going ultrasonic. Ultrasonic impact treatment
(UIT) helps prevent fatigue cracking in welds and welded members of
new bridges and structures by enhancing the geometry of the weld, introducing
favorable compressive stresses, and relieving tensile stresses internal
to the weld.
TIG Announces Focus Technologies for 2003
The Technology Implementation Group (TIG), which was started in 2001
to champion the implementation of ready-to-use technologies, products,
or processes resulting in economic or qualitative benefits, has chosen
three new technologies for accelerated deployment in 2003: Thermal Imaging
Safety Screening System (TISSS) for Commercial Vehicle Brakes, the Low
Cost Highway Rail Warning System, and Fiber Reinforced Polymer (FRP)
Repair of Overhead Sign Structure (OSS) Trusses.
Accelerated Construction: Transferring the Technology
Reducing travel delays and disruptions caused by highway construction
and increasing work zone safety are the twin goals behind the Accelerated
Construction Technology Transfer (ACTT) initiative. Sponsored by the
Federal Highway Administration (FHWA) and the American Association of
State Highway and Transportation Officials' (AASHTO) Technology Implementation
Group (TIG), ACTT promotes the use of innovative technologies and techniques
to accelerate the construction of major highway projects.
Reducing Utility-Related Delays: A Resource Guide
Highway construction projects are often delayed by problems with planning
around and relocating utility lines. These delays are costly, time-consuming,
and often unnecessary. A number of Federal Highway Administration (FHWA)
resources provide guidance on reducing or avoiding these utility-related
delays and the accompanying costs.
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