AMERICAN SOCIETY OF CIVIL ENGINEERS
The nation’s surface transportation infrastructure includes the critical highways, bridges, railroads, and transit systems that enable people and goods to access the markets, services, and inputs of production essential to America’s economic vitality. For many years, the nation’s surface transportation infrastructure has been deteriorating. Yet because this deterioration has been diffused throughout the nation, and has occurred gradually over time, its true costs and economic impacts are not always immediately apparent.
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