Two philadelphia highways waste a million hours a study of highway use says that on two short stretches of expressway in philadelphia, delays of 1 million hours a year cost $22 million in lost time and waste 375,700 gallons of fuel. source: bob mcgovern, philly voice, november 23, 2015 what is the externality described in the news clip? how could road tolls and high parking levies reduce congestion on philadelphia roads? if road use and parking charges cut commute times, would the philadelphia road system by more efficient? explain your answers. the externality described in the news clip is the