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LEHD data for FSUTMS!!!. presented to Model Task Force Meeting presented by Vidya Mysore, FDOT Central Office Krishnan Viswanathan, Cambridge Systematics, Inc. 12/12/06. Agenda. Objective Longitudinal Employer Household Dynamics (LEHD) Description Data Analysis Future Directions.
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LEHD data for FSUTMS!!! presented toModel Task Force Meeting presented byVidya Mysore, FDOT Central Office Krishnan Viswanathan, Cambridge Systematics, Inc. 12/12/06
Agenda • Objective • Longitudinal Employer Household Dynamics (LEHD) Description • Data Analysis • Future Directions
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 • NHTS Add-on • Review of QCEW [Quarterly Census of Employment and Wages] (Employment data from AWI, state agency) and LEHD Data
Agenda • Objective • LEHD Description • Data Analysis • Future Directions
Surveys Administrative Records Censuses Longitudinal Employer-Household Dynamics Program (LEHD) Local Immigration Dynamics Local Employment Dynamics Local Transportation Dynamics The LEHD Concept
LEHD Description • 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
LEHD Description • 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 • 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
LEHD Origin Destination Database Home Block (U/I Wage Data) Workplace Block (QCEW Data) # of Workers (primary job) and # of Jobs • Work Profile – block group • # establishments • # workers • Worker distribution • age • earnings • industry • Demand/ Growth Indicators • Job creation/loss • Hires/separations • Earnings hires/separations • Home Profile – block group • # workers • Worker distribution • age • earnings • industry Acknowledgments : US Census Bureau
LEHD Example Where South Duval residents work
Comparisons Acknowledgments : US Census Bureau
LEHD OD with ACS • ACS Data • Trip Time • Mode • Distance Home Block (U/I Wage Data) Workplace Block (QCEW Data) # of Workers (primary job) and # of Jobs • Work Profile – block group • # establishments • # workers • Worker distribution • age • earnings • industry • Demand/ Growth Indicators • Job creation/loss • Hires/separations • Earnings hires/separations • Home Profile – block group • # workers • Worker distribution • age • earnings • industry Acknowledgments : US Census Bureau
Travel Demand Models Applications • LEHD/LED data can be used get complete information workers and place of employment • LEHD data can be enhanced with ACS data • Small area OD pairs can be tabulated • Data available on a quarterly basis
LEHD and QCEW Data Availability • Available at no cost from AWI • Non Disclosure Agreement with AWI
Agenda • Objective • LEHD Description • Data Analysis • Future Directions
Data Analysis • Models Used • QCEW Data Analysis • Comparison between InfoUSA and QCEW data • Results
Models Used 2005 NERPM CF Model 2000 Polk TPO Model
QCEW (ES202) Data Analysis • December 2004 data used for analysis • Data overlaid to TAZ • Geocoded the data for address matching • ZDATA2 data developed from QCEW Data
Study Results Model HBW Trips LEHD Primary Jobs
Study Results Model HBW Trips CTPP JTW Trips
Study Results Model HBW Trips LEHD Primary Jobs
Study Results Model HBW Trips CTPP JTW Trips
Agenda • Objective • LEHD Description • Data Analysis • Future Directions
Future Directions • Potential data source for FSUTMS • ES 202 – Employment Data • LEHD – Model Calibration • Coordination effort for data aggregation • Work with Census Bureau to produce LEHD for Florida model • Variability of data over time • Stay tuned • Vidya @ vidya.mysore@dot.state.fl.us (850-414-4924) • Krishnan @ kviswanathan@camsys.com (850-219-6388)