U.S. Department of Transportation
Federal Highway Administration
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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
This magazine is an archived publication and may contain dated technical, contact, and link information.
|Publication Number: Date: Summer 1994|
Issue No: Vol. 58 No. 1
Date: Summer 1994
Featuring developments in federal highway policies, programs and research technology
by Nita Congress
The demand on our overburdened highway system is increasing every day. Traffic is snarled, drivers are snarling. What should be a routine 20-minute trip can take hours, as traffic congestion multiplies the effects of individual variations in driving performance "as determined by physical abilities, knowledge, experience and, indeed, personality."
The Intelligent Vehicle Highway System (IVHS) is a large umbrella program that consists of a number of different user services in the categories of travel and traffic management, public transportation management, electronic payment, commercial vehicle operations, emergency management, and advanced vehicle safety systems.
by Ilona Orban
Public safety is central to the mission of transportation officials in the Washington metropolitan area. However, safety challenges on the Washington Capital Beltway--the 63-mile highway that rings the nation's capital--are compounded by the fact that improvements require the attention and coordination of two states, the District of Columbia, and nearly 20 counties and cities as well as the federal government. This article presents the regional, coordinated efforts that are underway to improve safety on the Beltway.
by Germaine Williams and Tom Howard
The current finance structure for highways is not producing the funds needed to meet the country's requirements for highway investment. Evidence for this is found by comparing recent trends in highway finance and the annual investment required to maintain the current level of highway system performance.
by Richard A. Livingston
In the context of highway research, technology transfer usually refers to the adaptation of software or hardware from the aerospace or defense fields to problems of highway construction and maintenance.
by James D. Cooper, Ian M. Friedland, Ian G. Buckle, Roland B. Nimis, and Nancy McMullen Bobb
Our society--our way of life--depends on a complex network of infrastructure systems. These systems are lifelines that provide transportation and communication services, a supply of energy and fresh water, and the disposal of wastewater and waste products. Among the oldest of these lifelines are our transportation systems--highways, railroads, mass transit, ports, waterways, and airports.
by Jerry A. Reagan
The late 1980s saw a renewed interest in safety and geometric design in the United States. The Transportation Research Board (TRB) Committees on Geometric Design and the Operational Effects of Geometric Design launched a five-year series of sessions, beginning in 1988, on the state of the practice of five geometric design topics: sight distance, interchanges, intersections, alignment, and cross sections.
by Yusuf M. Mohamedshah and Amy R. Kohls
One of the major tasks of the Federal Highway Administration's (FHWA) Design Concepts Research Division is to develop and implement an Interactive Highway Safety Design Model (IHSDM).