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Annual Excess Fuel Consumed Per Traveler

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Visualization Notes:

Congestion results in wasted fuel, resulting in costs for individual travelers that add up to millions of lost dollars for a metropolitan area. Excess fuel consumed is defined as the increased fuel consumption due to travel in congested conditions rather than free-flow conditions. Tucson drivers consume more excess fuel than their Phoenix counterparts.  This may be be due to a lower number of alternate routes in the smaller city.