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Indian River County I 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 E'{�i`cienc —YV1� T = �M�el�ic/eType <br /> JJ .� RoadwayType MPq <br /> ehicleType RoadwayType <br /> The methodology uses non-interstate VMT and average fuel efficiency data for passenger <br /> vehicles (i.e., passenger cars and other 2-axle, 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 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 "weighted" fuel efficiency value that 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 2011. Based on the calculation completed in 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 <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 the 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. <br /> Tindale-Oliver&Associates, Inc. Indian River County <br /> June 2014 117 Impact Fee Update Study <br /> r s'� <br />