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0 presented to Model Task Force Meeting presented by Vidya Mysore, FDOT Central Office Krishnan Viswanathan, Cambridge Systematics, Inc. 12/12/06 LEHD data for FSUTMS!!!
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1 Agenda Objective Objective Longitudinal Employer Household Dynamics (LEHD) Description Longitudinal Employer Household Dynamics (LEHD) Description Data Analysis Data Analysis Future Directions Future Directions
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2 Objective Possible use of LEHD and Employment data for travel demand modeling Current and future directions of Census and other available data sources for transportation Current and future directions of Census and other available data sources for transportation NHTS Add-on NHTS Add-on Review of QCEW [Quarterly Census of Employment and Wages] (Employment data from AWI, state agency) and LEHD Data Review of QCEW [Quarterly Census of Employment and Wages] (Employment data from AWI, state agency) and LEHD Data
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3 Agenda Objective Objective LEHD Description LEHD Description Data Analysis Data Analysis Future Directions Future Directions
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4 The LEHD Concept Longitudinal Employer-Household Dynamics Program (LEHD) Surveys Administrative Records Censuses Local Employment Dynamics Local Transportation Dynamics Local Immigration Dynamics
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5 LEHD Description LEHD combines federal and state administrative data on employers and employees with core Census Bureau censuses and surveys LEHD combines federal and state administrative data on employers and employees with core Census Bureau censuses and surveys Local Employment Dynamics (LED) is a voluntary partnership between state labor market information agencies and the U.S. Census Bureau to develop new information about local labor market conditions Local Employment Dynamics (LED) is a voluntary partnership between state labor market information agencies and the U.S. Census Bureau to develop new information about local labor market conditions
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6 LEHD Description The data for LEHD will be based on Quarterly Census of Employment and Wages (QCEW/ES-202) The data for LEHD will be based on Quarterly Census of Employment and Wages (QCEW/ES-202) Number of people employed and the wages paid to the employees each quarter Number of people employed and the wages paid to the employees each quarter Multi-establishment employers also provide individual worksite data Multi-establishment employers also provide individual worksite data Preliminary annual data are available in June and final annual data are available in October of each year. Quarterly data are available six months after the end of each quarter Preliminary annual data are available in June and final annual data are available in October of each year. Quarterly data are available six months after the end of each quarter
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7 LEHD Origin Destination Database Home Block (U/I Wage Data) Workplace Block (QCEW Data) # of Workers (primary job) and # of Jobs Home Profile – block group # workers Worker distribution age earnings industry Work Profile – block group # establishments # workers Worker distribution age earnings industry Demand/ Growth Indicators Job creation/loss Hires/separations Earnings hires/separations Acknowledgments : US Census Bureau
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8 LEHD Origin Destination Database Year h_geocodefull w_geocodefull jobs_all jobs_prim jobs_priv_all jobs_priv_prim Year YYYY FIPS state, FIPS county; Census tract, Census block; home FIPS state, FIPS county; Census tract, Census block; work Number of jobs to which workers made this trip Number of primary jobs to which workers made this trip Number of private sector jobs to which workers made this trip Number of private sector primary jobs to which workers made this trip
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9 LEHD Example Where South Duval residents work
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10 Who was sampled?
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11 When & how were they sampled?
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12 Comparisons CTPPACSLEHD Frame HH and GQs UI Workers/Firms Sample Rate ~ 1 in 6 per 10 years ~ 1 in 8 per 5 years ~ 1 in 1 4 times a year Release Frequency DecennialAnnualQuarterly CoverageNationwideNationwide 41 States Reference Period WeekWeekQuarter AvailabilityNoYesYes Acknowledgments : US Census Bureau
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13 LEHD OD with ACS Home Block (U/I Wage Data) Workplace Block (QCEW Data) # of Workers (primary job) and # of Jobs Home Profile – block group # workers Worker distribution age earnings industry Work Profile – block group # establishments # workers Worker distribution age earnings industry Demand/ Growth Indicators Job creation/loss Hires/separations Earnings hires/separations ACS Data Trip Time Mode Distance Acknowledgments : US Census Bureau
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14 Travel Demand Models Applications LEHD/LED data can be used get complete information workers and place of employment LEHD/LED data can be used get complete information workers and place of employment LEHD data can be enhanced with ACS data LEHD data can be enhanced with ACS data Small area OD pairs can be tabulated Small area OD pairs can be tabulated Data available on a quarterly basis Data available on a quarterly basis
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15 LEHD and QCEW Data Availability Available at no cost from AWI Available at no cost from AWI Non Disclosure Agreement with AWI Non Disclosure Agreement with AWI
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16 Agenda Objective Objective LEHD Description LEHD Description Data Analysis Data Analysis Future Directions Future Directions
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17 Data Analysis Models Used Models Used QCEW Data Analysis QCEW Data Analysis Comparison between InfoUSA and QCEW data Comparison between InfoUSA and QCEW data Results Results
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18 Models Used 2005 NERPM CF Model 2000 Polk TPO Model
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19 QCEW (ES202) Data Analysis December 2004 data used for analysis December 2004 data used for analysis Data overlaid to TAZ Data overlaid to TAZ Geocoded the data for address matching Geocoded the data for address matching ZDATA2 data developed from QCEW Data ZDATA2 data developed from QCEW Data Model Total QCEW Employment Lat/Long Information Available Geocoded to Model TAZ Address Matched to TAZ NERPM728,044487,954468,755 176,957 Polk438,190182,675169,771 167,370
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20 Comparison between InfoUSA and QCEW Data NERPMQCEWInfoUSAModel MAN. INDUSTRIAL 113,00389,31854,903 OTHER INDUSTRIAL 34,69942,644137,255 COMMERCIAL 145,355126,640182,157 SERVICE 352,655 274,766420,058 TOTAL645,712533,368794,373 POLKQCEWInfoUSA Model (2000) INDUSTRIAL 41,13335,761 41,684 COMMERCIAL 179,46858,486 59,775 SERVICE 116,54099,418 105,611 TOTAL 337,141 193,665 207,070
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21 Study Results Model HBW TripsLEHD Primary Jobs
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22 Study Results Model HBW TripsCTPP JTW Trips
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23 Study Results Model HBW Trips LEHD Primary Jobs
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24 Study Results Model HBW Trips CTPP JTW Trips
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25 Agenda Objective Objective LEHD Description LEHD Description Data Analysis Data Analysis Future Directions Future Directions
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26 Future Directions Potential data source for FSUTMS Potential data source for FSUTMS ES 202 – Employment Data ES 202 – Employment Data LEHD – Model Calibration LEHD – Model Calibration Coordination effort for data aggregation Coordination effort for data aggregation Work with Census Bureau to produce LEHD for Florida model Work with Census Bureau to produce LEHD for Florida model Variability of data over time Variability of data over time Stay tuned Stay tuned Vidya @ vidya.mysore@dot.state.fl.us (850-414-4924) Vidya @ vidya.mysore@dot.state.fl.us (850-414-4924)vidya.mysore@dot.state.fl.us Krishnan @ kviswanathan@camsys.com (850-219-6388) Krishnan @ kviswanathan@camsys.com (850-219-6388)kviswanathan@camsys.com
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