Re: Comparison of CTPP OD flows at different aggregation levels?: Or put another way--The difference between the small areas and county
totals is because the Census Bureau cannot (easily, my words) geocode
all of the work locations to the Tract, Block Group or Block (including
TAZ and TADs) but will code every work location to a county and state.
The difference between the TADs and TAZs is more likely due to the CTPP
special rounding rules and aggregating rounded… https://tmip.zephyrtransport.org/scripts/wa-ZEPHYRTRANS.exe?A2=TMIP%3Bffd37fea.2405&utm_source=dlvr.it #tmip