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• <br />Indian River County 1 Impact Fee Update Study <br />Demand Component <br />Travel Demand <br />1 <br />The amount of transportation system consumed by a unit of new land development is <br />calculated using the following variables and is measured in terms of the vehicle miles of <br />n ew travel a unit of development consumes on the existing road system. <br />• Number of daily trips generated; <br />• Average length of those trips; and <br />• Proportion of travel that is new travel, rather than travel that is already traveling on <br />the road system and is captured by new kde development. <br />• <br />As part of this update, the trip characteristics`•'variables were obtainedprimarily from two <br />:.:� . <br />sources: (1) trip characteristics studies previouslyconducted throughout'Florida by TOA <br />Pe, <br />Institute of Engineers' (ITE) Trip <br />(Florida Studies Database), and (e2 <br />Generation report (9th edition). <br />� <br />The Florida Studies Database:, is included in Appendix 6. This database was used to <br />.ems <br />determine VMT, which is developed from tnp ;length percent new trips, and trip rate for <br />most land uses in the eeffeeschedu The data%the trip characteristics database is based on <br />actual land duseestudies asndiwasgcoll cted throughout Florida using machine traffic counts <br />kir . <br />and site specific land use origin destination seNfea <br />urveys. In addition, trip generation data from <br />usaums to <br />the ITE9Edition Trip Generation report was used. In instances where trip generation was <br />; <br />< r?.. .. <br />available'from the ITE Trip Generation •report and the Florida Studies Database, ad blended <br />average calculation was used:=to increase the sample size. <br />Interstate and Toll"Facility Discount Factor <br />api <br />This variable is used to recognize that improvements to Interstate highways are funded by <br />the State using earmarked and Federal funds, while toll facility improvements are funded <br />with toll revenues. Typically, impact fees are not used to pay for these improvements, and <br />the portion of new development's travel occurring on the interstate/toll facility system <br />u sually is eliminated from the total travel for each land use. <br />Tindale -Oliver & Associates, Inc. <br />January 2014 <br />Indian River County <br />104 Impact Fee Update Study <br />