WASHINGTON (November 21, 2012)--Extreme weather poses a growing threat to the nation's roads, bridges, railways, airports and transit systems, which leaves states and cities trying to come to terms with a new normal.
Superstorm Sandy, the latest and most severe example, caused the worst damage to the New York subway system in the system’s 108-year history.
New York isn't alone; intense rain, historic floods and record temperatures are taking a toll on transportation across the country.
Transportation engineers build highways and bridges to last 50 or even 100 years, but now they are reconsidering how they do that.
The American Association of State Highway and Transportation Officials is weighing rewriting its standards on design, construction and maintenance of roads and bridges to reflect new weather extremes.
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