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v <br /> Tables A -9 through A - 11 provide supporting documentation on how the residential coefficients <br /> for functional population were calculated . <br /> Table A -9 <br /> IRC Population and Employment Characteristics <br /> Item/Calculation Step Figure <br /> Workers who live and work in IRC ( 1 ) 395072 <br /> Workers who live elsewhere but work in IRC (2 ) 9 , 049 <br /> Total workers in IRC(3 ) 48 , 121 <br /> Workers who live in IRC but work elsewhere 55804 <br /> Weighted average worker population for workers who <br /> move between Counties(5 ) 73156 <br /> Total effective workers(6) 46 , 228 <br /> Population(7 ) 112 947 <br /> Total effective workers as a percent of population( 8 ) 41 % <br /> School age population ( 5 - 17 years)(9 ) 165435 <br /> Percent of total population( 10) 15 % <br /> Population net of workers & school age population 51 , 636 <br /> Percent of total population( 12) o <br /> 46 /o <br /> ( 1 ) Source : US Census Bureau , County-to - County Worker Flow Files , <br /> 2000 <br /> (2 ) Source : US Census Bureau , County-to- County Worker Flow Files , <br /> 2000 <br /> ( 3 ) Sum of workers who live and work in IRC (Item 1 ) and workers who <br /> live elsewhere but work in IRC (Item 2 ) . <br /> (4 ) Source : US Census Bureau , County -to -County Worker Flow Files , <br /> 2000 <br /> ( 5 ) Weighted average is calculated by using the assumption that workers <br /> who do not reside in IRC (Item 2 ) are in IRC for 10 hours per day <br /> while workers who are IRC residents but work outside the County <br /> ( Item 4 ) are in IRC for 14 hours per day . The resulting equation is <br /> [( 9 , 049 x 10/24) + ( 5 , 804 x 14/24 )] . <br /> ( 6 ) Sum of workers who live and work in IRC (Item 1 ) and weighted <br /> average worker population (Item 5 ) . <br /> (7) Source : US Census Bureau, 2000 Census <br /> ( 8 ) Total effective workers ( Item 6 ) divided by population (Item 7 ) . <br /> ( 9) Source : US Census Bureau, 2000 Census <br /> ( 10 ) School age population (Item 9) divided by population (Item 7 ) . <br /> ( 11 ) Population ( Item 7 ) less workers who live and work in IRC (Item 1 ), <br /> workers who live in IRC and work elsewhere (Item 4 ), and school age <br /> population (Item 9 ) . <br /> ( 12 ) Population net of workers and school age population ( Item 11 ) divided by total <br /> population ( Item 7 ) . <br /> Tindale -Oliver & Associates , Inc . Indian River County <br /> May 2005 A - 5 Impact Fee Study <br />