Public Roads

Iron and Asphalt: The Evolution of The Spiral Curve in Railroads and Parkways

The spiral curve was first used in railroads in the late 1800s, and its use peaked in the design of the parkways of the 1930s.

New Life for Old Transmitters: Converting GWEN to NDGPS

The recent conversion of two Ground Wave Emergency Network (GWEN) sites in Annapolis and Hagerstown, Md., to Nationwide Differential Global Positioning System (NDGPS) broadcast stations is the latest chapter in the emerging NDGPS.

Colossal Partnership: Denver's $1.67 Billion T-REX Project

Metro Denver's Transportation Expansion Project (T-REX), a $1.67 billion combined freeway reconstruction and light-rail extension, is as massive as the name implies, and three years ago, it was nothing more than a dream.

One-Of-A-Kind Bridge Project Protects National Bird

The Iowa Department of Transportation (DOT) and its construction and design partners are taking extreme measures to protect the environment and our national symbol, the bald eagle, during the relocation of a 40-mile (64-kilometer) segment of U.S. Route 20.

Partnership Protects Pristine Estuary and Wetlands

Today on Whalen Island, Ore., great blue herons perch on shore, splashing into clear waters when they spy a fish.

Relationship Marketing: A Key to Success and Survival

These days, it seems that we, American consumers, make more and more of our purchases from stores, companies, or services with whom we've developed long-term relationships.

Public Roads - September/October 2001

International Cooperation to Prevent Collisions At Intersections

The United States and Japan have joined forces in the hope of finding technology-based solutions to reduce the high incidence of crashes at intersections.

Pay Attention - Buckle Up: Safe Driving Is A Full-Time Job

The following article is provided by the Network of Employers for Traffic Safety (NETS), a nonprofit, public-private partnership.

Public Roads - July/August 2001

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