[CTPP News] Re: Roll up TAZs to Census Block Groups?

The Summarize Within Geoprocessing Tool in ArcGIS Pro works nicely for this. It allocates attributes between two polygons layers of different geographies based on the percentage of overlap. Be sure you use the tool in the Toolbox, not the one in the Analysis ribbon. They are different. Dan Seidensticker (he\him\his) GIS Specialist From: Jim Hubbell <jimhubbell1975(a)gmail.com> Sent: Friday, June 3, 2022 4:35 PM To: ctpp(a)listserv.transportation.org Subject: [CTPP News] Roll up TAZs to Census Block Groups? Caution: This email was sent from an external source. Avoid unknown links and attachments. Hello CTPP Community, Even though TAZs were officially retired by the Census Bureau, a lot of folks in the transportation continue to use the geographies (especially those from 2010). Today a colleague at StreetLight asked if it's possible to roll up TAZs into Census Block Groups. I couldn't recall off the top of my head whether this is possible, and if so, how to do it. It seems to me that TAZ delineation criteria required they nest into Census Tracts, but maybe also into Block Groups? Any thoughts or guidance on this question would be greatly appreciated. Thanks! Jim Hubbell StreetLight Data