Public Roads
Congestion Control and Demand Management
Road traffic congestion is a significant -- and growing -- problem in many parts of the world.The Nuclear Asphalt Content Gauge
About 93 percent of the 3.4 million kilometers of paved roads in the United States are asphalt, and accurate monitoring of the asphalt cement content of these roads is important to ensure that the mix design-tolerance is met.Interactive Highway Safety Design Model: Accident Predictive Module
The Summer 1994 issue of Public Roads introduced the Interactive Highway Safety Design Model (IHSDM).The National AHS Consortium - A New Way of Doing Business
The selection of the National Automated Highway System Consortium (NAHSC) to develop, in partnership with the Department of Transportation (DOT), the prototype for an Automated Highway System (AHS) was a momentous occasion for two reasons.Tunnel Fire: Testing to Evaluate Ventilation Systems.
The very image of a fire in a tunnel -- people and vehicles helplessly trapped below ground while flames consume limited oxygen -- is a horrifying one.Robotics in Highway Construction and Maintenance
When the Office of Advanced Research was established in April 1992 at the Federal Highway Administration's (FHWA) Turner-Fairbank Highway Research Center, robotics -- robot and automation technology -- was made one of the six key areas of research.The Safety Challenge: The National Capital Beltway
This article is an update to the article on Capital Beltway safety in the Summer 1994 issue of Public Roads.Human Factors in Advanced Traffic Management Systems
Today's traffic centers control traffic signals in a relatively low-tech environment.Public Roads - Winter 1995
Featuring developments in federal highway policies, programs and research technology