An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Roadway crashes are a leading cause of death in the United States. Yet, little information on crash risks is readily available to travelers and highway planners. Raising public awareness of these risks is one of the primary objectives of the U.S. Road Assessment Program (usRAP)...
Pennsylvania roadway bridges are not just designed to bear traffic, they must handle the extreme temperature fluctuations of the winter and summer cycles. Recent construction of Interstate 99, in central Pennsylvania, has provided an ideal arena for examining two popular bridge...
The successful mass evacuation of populations endangered by natural and manmade disasters requires establishment of mass-exit and operational strategies that maximize the proficiency and capacity of multimodal transportation networks. A workable emergency evacuation calls for...
The University of Idaho's National Institute for Advanced Transportation Technology (NIATT) has been transferring technology that it developed to students in the classroom and to practitioners in the field for over 10 years, thanks to a closely integrated program of technology...
0n May 19, 2009, President Obama announced a new federal vehicle policy, starting in 2012, that requires automobile and light-truck fleets to scale up to an average fuel economy of 35.5 miles per gallon (mpg) by 2016. In order to meet these new regulations, automobile manufacturers will...
Since the early 1990s, The New York City Department of Transportation (NYCDOT) has been active in instituting programs aimed at improving safety, with a special focus on pedestrians and cyclists. New York has experienced dramatic pedestrian safety gains since 1990-reducing the pedestrian...
For more than 15 years, researchers at the Western Transportation Institute (WTI) at Montana State University (MSU) have focused on using technology to address the unique transportation challenges in rural areas. In particular, WTl's Systems Engineering Development and Integration program...
Researchers at Purdue University and the NEXTRANS Center (Region V Regional University Transportation Center) are applying cutting-edge technology to develop a model that can accurately measure travel-time reliability. This model may provide a new basis for transportation professionals to...
Livable communities are places that achieve economic prosperity, environmental quality, and social equity -the "three Es" of sustainability. In terms of transportation, they are places where transportation modes other than driving are viable for activities such as walking or biking to school....
One of the most serious factors in major accidents is fuel fire, which can kill or injure those involved in an accident and prevent rescuers from getting to those in need. This was the case on September 12, 2008, when a California Metrolink train slammed into a freight train, killing...