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Section 35 -14. Independent fee calculation formulae. <br />(a) The independent fee calculation study shall be based on the same service standards and <br />unit costs for facilities used in the needs assessment study (as adjusted by the same cost <br />inflation factors used in annual adjustments since the study was prepared), and shall <br />document the methodologies and assumptions used. <br />(b) An independent fee calculation study submitted for the purpose of calculating a road <br />impact fee may be based on data, information or assumptions from independent sources, <br />provided that: <br />(l) The independent source is an accepted standard source of transportation <br />engineering or planning data; or <br />(2) The independent source is a local study on trip characteristics carried out by a <br />qualified transportation planner or engineer pursuant to an accepted methodology <br />of transportation planning or engineering. <br />(c) The independent fee calculation is the sum of the road impact fees, the park impact fees, <br />the fire /EMS impact fees, police impact fees, and solid -waste impact fees. The formulae <br />for calculation of these fees are listed below. <br />(1) The road impact fees shall be calculated according to the following formula: <br />ROAD IMPACT FEE = VMT x NE'F COST/VMT <br />Where <br />VMT <br />= <br />TRIPS x % NEW x LENGTH 2 <br />NET COST/VMT <br />= <br />CGSTIVMC x VMCIVMT - CREDITIVMT <br />TRIPS <br />— <br />Trip ends during an average weekday <br />% NEW <br />— <br />Percent of trips that are primary trips, as opposed to pass -by or <br />diverted -link trips <br />LENGTH <br />— <br />Average length of a trip on the major roadway Facilities <br />i 2 <br />-- <br />Avoids double - counting trips for origin. and destination <br />COSTIVMC <br />= <br />Average cost to add a new daily vehicle -mile of capacity <br />VMCIVMT <br />= <br />System -wide ratio of VMc to VMT on the major roadway <br />facilities (assumed 1:1) <br />CREDITIVMT <br />= <br />DEBT/VMT + PAST/VMT + GRANT/VMT <br />DEBT /VMT <br />_ <br />outstanding debt used for capacity improvements on existing road <br />facilities divided by total existing VMT <br />PAST/VMT <br />The net present value of property taxes paid over the last five years <br />by vacant land for road capacity improvements, including general <br />fund expenditures as well as debt service payments, per VM'I" <br />GRANT/VMT <br />= <br />The net present value of future Federal and State roadway capacity <br />funding anticipated to be forthcoming per VMT over the next. 20 <br />years <br />