One day after the President George Bush Turnpike went to all-electronic toll collection, The Wall Street Journal's Environmental Capital blog takes note of one of the North Texas Tollway Authority's reasons for ditching the quarter-catchers: "Air Quality and Fuel Efficiency." As in: "Transitioning to all-ETC will eliminate the stopping, starting and idling associated with cash toll lanes. By promoting a continuous flow of traffic at consistent speeds, the NTTA promotes air quality in the region.
