1. TAZs were defined by the MPOs and states using basically a census block to TAZ equivalency. The data crunching and table production was done inside the Census Bureau.

2. This will all depend on what CTPP gets but it will be census geography. I believe the ask from the Census Bureau is for block group and tract level data, which likely has some relationship to the TDM tazs, but the Census Bureau disclosure review board needs to complete their review first before all the table details are know.

On 8/5/2021 2:58 PM, Mi, Xinbo wrote:

Hi,

I am new to the list and I want to post 2 questions:

1. Since CTPP data is based on ACS data and the lowest level of geography of ACS data is block groups, how was CTPP data generated at TAZ level?

2. Since TAZ level CTPP data will be discontinued, what will be the best practice to get TAZ level demographic, socioeconomic and housing characteristics data as input layers to travel demand model?

Thanks!

Best,

Xinbo Mi

Transportation Engineer

Evansville Metropolitan Planning Organization

1NW Martin Luther King Jr. Blvd. Room 316

Evansville, Indiana 47708

Office Main Line 812.436.7833

www.evansvillempo.com
_______________________________________________
ctpp-news mailing list -- ctpp-news@mailman.chrispy.net
To unsubscribe send an email to ctpp-news-leave@mailman.chrispy.net

-- 
Ed Christopher
Transportation Planning Consultant
708-269-5237