[CTPP] Making the "best use possible" out of employer databases of employee home location zip codes

Hello, My apologies to those who are on both the CTPP and TMIP lists, for a (much) more lengthy version of this question was recently asked on the TMIP list. What (if any) efforts have transportation planners made, in regards to comparing CTPP or LEHD-based home-work commuter flows to what can be obtained from employer databases containing the home location zip codes for all employees who work at specific geographic locations? Or comparison of information from travel model outputs of home-to-work flows to employer databases? I am particularly interested right now in whatever summary reports, memos or emails have been prepared, but will be happy to receive whatever feedback you might like to offer about successes or failures, either via a reply to the CTPP list, or directly to my email shown below. If you send anything directly to me, please let me know if you have any restrictions in place in regards to me sharing your comments with others. Thanks in advance! Ken Cervenka Ken.Cervenka@dot.gov<mailto:Ken.Cervenka@dot.gov>