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• <br />• <br />Indian River County 1 Impact Fee Update Study <br />Appendix D, Table D-8 documents the calculation of fuel efficiency value based on the following <br />e quation, where "VMT" is vehicle miles of travel and "MPG" is fuel efficiency in terms of miles <br />per gallon. <br />Fuel Efficiency= EVMTRoatt,a,,Type : E <br />VMTVehicleType <br />NIP UVehicleT}pe 1RoadwayType <br />The methodology uses non -interstate VMT and average fuel efficiency data for passenger <br />vehicles(i.e., passenger cars and other 2 -axle, e� <br />p g 4 -tire vehicles, such as vans pickups, and <br />SUVs) and large trucks (i.e., single -unit, 2 -axle; 6 -tire or more trucks and combination <br />trucks) to calculate the total gallons of fuel used"byy each of these vehicle types. <br />The combined total VMT for the vehicle types then divided by the combined total gallons <br />of fuel consumed to calculate, in effect, a "weighted"Suetefficiency value that reflects the <br />• <br />e xisting fleet mix of traffic on non interstate roadways. The VMT and average fuel <br />e fficiency data were obtained frornthe most recent Federal Highway Administration's <br />Highway Statistics 2011. Based on the calculation <br />fuel efficiency rate to used in the updated impact <br />Effective Days per Year: - <br />completed _in,Appendix D, Table D-8, the <br />-,.. <br />An effective'3655days!per year ofoperation ,was assumed for all land uses in the proposed fee. <br />s=� <br />-_. <br />However, this will not bethe casefor all land uses since some uses operate only on weekdays <br />(e.g., office buildings) and/or only seasonally (e.g. schools). The use of 365 days per year, <br />therefore, provides a conservative estimate, ensuring that gasoline taxes are adequately credited <br />against the fee. <br />equation is 18.19 miles per gallon. <br />Tindale -Oliver & Associates, Inc. <br />January 2014 <br />Indian River County <br />114 Impact Fee Update Study <br />