Processing LED On the Map Data Jeff Arp Nonprofit Center of Milwaukee On the Map Output OD = 4(ja, jp, pa, pp) x 2 (main, aux) = 8 RAC = 4(ja, jp, pa, pp) x 10(age1, age2, age3, earn1, earn2, earn3, ind1, ind2, ind3,total) = 40 WAC = 4(ja, jp, pa, pp) x 10(age1, age2, age3, earn1, earn2, earn3, ind1, ind2, ind3,total) = 40 OD + RAC + WAC = 88 x 6yr = 528 LED Tables OD = 4(ja, jp, pa, pp) x 2 (main, aux) = 8 RAC = 4(ja, jp, pa, pp) x 10(age1, age2, age3, earn1, earn2, earn3, ind1, ind2, ind3,total) = 40 WAC = 4(ja, jp, pa, pp) x 10(age1, age2, age3, earn1, earn2, earn3, ind1, ind2, ind3,total) = 40 OD + RAC + WAC = 88 x 6yr = 528 LED Tables OD = 4(ja, jp, pa, pp) x 2 (main, aux) = 8 RAC = 4(ja, jp, pa, pp) x 10(age1, age2, age3, earn1, earn2, earn3, ind1, ind2, ind3,total) = 40 WAC = 4(ja, jp, pa, pp) x 10(age1, age2, age3, earn1, earn2, earn3, ind1, ind2, ind3,total) = 40 OD + RAC + WAC = 88 x 6yr = 528 LED Tables OD WI Main OD WI AUX The rest of the data Extract to CSV Combine WI 'Main' & Aux files Convert to DBF Import WI Records from 'Aux' files of other states DownThemAll OD processing Import WI Records from 'Aux' files of other states Add X and Y Coords of block centroid for O & D Calculate O-D Distance Use File for Stats Total on O for Mapping Residents Total on D for Mapping Workplaces Residents WorkplacesResidents Extract to CSV Convert to DBF DownThemAll (age1, age2, age3, earn1, earn2, earn3, ind1, ind2, ind3,total) Collapse 10 tables into 1 Put all years into 1 table for stats (1 rec per census block per year) Use one year files for mapping RAC/ WAC processing Age1 table Age2 table Age3 table All Cross table WorkplacesResidents Things to consider Processing time HD Space LED Data issues/anomalies