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• <br />• <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 />equation, where "VMT" is vehicle miles of travel and "MPG" is fuel efficiency in terms of miles <br />per gallon. <br />Fuel Efficiency=1VMTRoadwayType <br />VMT <br />VehicleType <br />MPG <br />VehicleType / RoadwayType <br />The methodology uses non -interstate VMT and averagefuel-efficiency data for passenger <br />vehicles (i.e., passenger cars and other 2 -axle, 4-tirevehicles, 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 by'each of these vehicle types. <br />The combined total VMT for the vehicle types -is then divided by the combined total gallons <br />of fuel consumed to calculate, in,effect, a "weigh"ted';.fuel ;efficiency value'ttiat reflects the <br />existing fleet mix of traffic on =non, interstate roadways. The VMT and average fuel <br />efficiency data were obtained from- the;^most recent''Federal Highway Administration's <br />Highway Statistics 2O11,Based on the, calculation completeddAil--Appendix D, Table D-8, the <br />fuel efficiency rate to be used in.the updated impact fee equation%is 18.19 miles per gallon. <br />Effective Days per Year_2 <br />An effective 365 -days -per year of operation -was assumed for all land uses in the proposed fee. <br />However, this will not be Ahe case for.\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.`Ni , <br />• <br />Tindale -Oliver & Associates, Inc. <br />Indian River County <br />January 2014 114 Impact Fee Update Study <br />