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See how the Pennsylvania Turnpike proved the doubters wrong and came to be known as the World's Greatest Highway. The Pennsylvania Turnpike is one of the best-known highways in the United States. Most Pennsylvania Turnpike travelers are unaware that its construction was inspired by the route of the never-completed South Pennsylvania Railroad. In the 1930s, men of great vision conceived, planned, and built the nation's first long-distance superhighway using the abandoned railroad's partially finished tunnels as its foundation. The Pennsylvania Turnpike draws from the extensive photograph collection in the Pennsylvania State Archives. Many were taken by photographers hired by both the Pennsylvania Turnpike Commission and its contractors, and most have never been published previously. Originally predicted to be a financial failure, the project wound up being a tremendous success and, eventually was expanded and improved, laying the groundwork for the nation's Interstate Highway System.
Fully revised and updated edition. Filled with all-new vintage postcards and photos. Maps for travelers following the original route.
Without a first class system of interstate highways, life in America would be far different -- it would be more risky, less prosperous, & lacking in the efficiency & comfort that Americans now enjoy & take for granted. The Dwight D. Eisenhower System of Interstate & Defense Highways, in place & celebrating its 40th anniversary, must surely be the best investment a nation ever made. Consider this: it has saved the lives of at least 187,000 people; it has prevented injuries to nearly 12 million people; it has returned more that $6 in economic productivity for each $1 it cost, & much more. Photos. Charts & tables.
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In Divided Highways, Tom Lewis tells the monumental story of the largest engineered structure ever built: the Interstate Highway System. Here is one of the great untold tales of American enterprise, recounted entirely through the stories of the human beings who thought up, mapped out, poured, paved - and tried to stop - the Interstates. Conceived and spearheaded by Thomas "the Chief" MacDonald, the iron-willed bureaucrat from the muddy farmlands of Iowa who rose to unrivaled power, the highway system was propelled forward through the pathbreaking efforts of brilliant engineers, argued over by politicians of every ideological and moral stripe, reviled by the citizens whose lives it devastated, and lauded as the greatest public works project in U.S. history.
All phases of road developmentâ€"from construction and use by vehicles to maintenanceâ€"affect physical and chemical soil conditions, water flow, and air and water quality, as well as plants and animals. Roads and traffic can alter wildlife habitat, cause vehicle-related mortality, impede animal migration, and disperse nonnative pest species of plants and animals. Integrating environmental considerations into all phases of transportation is an important, evolving process. The increasing awareness of environmental issues has made road development more complex and controversial. Over the past two decades, the Federal Highway Administration and state transportation agencies have increasingly recognized the importance of the effects of transportation on the natural environment. This report provides guidance on ways to reconcile the different goals of road development and environmental conservation. It identifies the ecological effects of roads that can be evaluated in the planning, design, construction, and maintenance of roads and offers several recommendations to help better understand and manage ecological impacts of paved roads.
Traces the history of mapmaking while offering insight into the role of cartography in human civilization and sharing anecdotes about the cultural arenas frequented by map enthusiasts.
This guide replaces the 1984 publication entitled An Informational Guide for Roadway Lighting. It has been revised and brought up to date to reflect current practices in roadway lighting. The guide provides a general overview of lighting systems from the point of view of the transportation departments and recommends minimum levels of quality. The guide incorporates the illuminance and luminance design methods, but does not include the small target visibility (STV) method.