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Indian River County 1 Impact Fee Update Study <br />Calculated Transportation Impact Fee Schedule <br />The impact fee calculations for each land use are included in Appendix E, which includes the <br />major land use categories and the impact fees for the individual land uses contained in each <br />of the major categories. For each land use, Appendix E illustrates the following: <br />• Demand component variables (trip rate, trip length, and percent of new trips); <br />• Total impact fee cost; <br />• Annual gas tax credit; <br />• Present value of the gas tax credit; <br />• Net transportation impact fee; <br />• Current Indian River County impact fee; and <br />• Percent difference between the calculated impact fee and the 2009 adopted impact <br />fee. <br />It should be noted that the net impact fee illustrated in Appendix E is not necessarily a <br />recommended fee, but instead represents the technically defensible impact fee per unit of <br />land use that could be charged in Indian River County. <br />For clarification purposes, the calculation of an impact fee for one land use category is <br />presented. In the following example, the net impact fee is calculated for the single-family <br />residential detached land use category (ITE LUC 210) using information from the impact fee <br />schedule included in Appendix E, Table E-1. For each land use category, the following <br />equations are utilized to calculate the net impact fee: <br />Net Impact Fee = Total Impact Cost — Gas Tax Credit <br />Where: <br />Total Impact Cost = ([Trip Rate x Assessable Trip Length x % New Trips] / 2) x (1 — <br />Interstate/Toll Facility Disc. Factor) x (Cost per Vehicle -Mile of Capacity) <br />Gas Tax Credit = Present Value (Annual Gas Tax), given 2.5% interest rate & 25 -year <br />facility life <br />Tindale -Oliver & Associates, Inc. Indian River County <br />June 2014 118 Impact Fee Update Study <br />153 <br />