United States Department of Transportation
i
Priority, Market-Ready Technologies and Innovations: Expanded Polystyrene (EPS) Geofoam
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2004-03-01
[PDF-465.10 KB]
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Abstract:Every year in the United States, traffic congestion results in 5. 7 billion person-hours of delay; for each person, that delay averages 36 hours per year. In 1997, the individual cost of congestion exceeded $900 per driver, and total estimated costs were more than $72 billion in lost wages and wasted fuel. Highway congestion continues to grow as vehicle travel increases and the Nation's bridges and roads deteriorate. To help alleviate this growing congestion, capacity on the Nation's highways and major roads must be expanded. In many circumstances, however, roadway embankment widening or new alignments may require construction over soft or loose soils that are incapable of supporting increased loads. Embankment construction projects must identify innovative materials and construction techniques to accelerate project schedules by reducing vertical stress on the underlying soil.
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