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Indian River County 1 Impact Fee Update Study Florida Studies Trip Characteristics Database The Florida Studies Trip Characteristics Database includes over 200 studies on 40 different residential and non-residential land uses collected over the last 20 years. Data from these studies include trip generation, trip length, and percent new trips for each land use. This information has been used in the development of impact fees and the creation of land use plan category trip characteristics for communities throughout Florida and the U.S. TOA estimates trip generation rates for all land uses in a transportation impact fee schedule using data from studies in the Florida Studies Database. and the Institute of Transportation Engineers' (ITE) Trip Generation reference report (9th edition)NIn instances, when both ITE Trip Generation reference report (9th edition) and Florida,Studies trip generation rate (TGR) data are available for a particular land use, the data is typically blended together, to increase the sample size and provide a more valid estimate of the average number of trips,generated per unit of development. If no Florida Studies data is available, only TGR.data from the;ITE reference report is used in the fee calculation. The trip generation rate for each respective land use is calculated using machine counts that record daily traffic into and out of the site studied:. The traffic count.hoses are set at entrances to residential subdivisions for the residential°land uses and at all access points for non-residential land uses. The trip length information is,obtained'through origin -destination surveys that ask respondents where they came from -prior to arriving at -the'site and where they intended to go after leaving the site: "The results of`these surveys'were used to estimate average trip length by land use. • The percent,new1 trip variableis based, -on assigning each trip collected through the origin - destination surveyprocess a trip type (primary, secondary, diverted, and captured). The percent new trip variable is then calculated as 1 minus the percentage of trips that are captured. TOA has published an article :entitled, Measuring Travel Characteristics for Transportation Impact VY J Fees, ITE Journal, April 1991 -on the data collecting methodology for trip characteristics studies. Tindale -Oliver & Associates, Inc. Indian River County January 2014 B-4 Impact Fee Update Study