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Traffic gridlocked by summer road construction
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D.C.-region traffic woes likely to persist for decades, officials say
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Surprise! D.C. congestion among worst in U.S.
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Traffic gridlocked by summer road construction
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Report: Fairfax congestion hurts schools, jobs, environment
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D.C. needs new ways to cope with traffic
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Virginia, Maryland punt on billions needed for roads
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Traffic congestion now 24/7 with night road work
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Construction not the only nighttime road hazard
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Study: D.C. area home to many of country's most congested roadways
