bob marbourg
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February 16, 2015
WTOP’s traffic guru: The cold makes the snowy roads more treacherous

January 5, 2015
Ask the Traffic Experts: Jan. 5, 2015
March 25, 2014
Freezing roadways a danger to Wednesday morning commuters

December 5, 2013
Tree lighting downtown to slow commute Friday

November 19, 2012