Has anyone tried aggregating Census TAZs for the nation into something larger (e.g.,  20K in population) that still makes sense for transportation planning (e.g., corridors, MIS, Districts, planning areas etc.)? Or do you have an algorithm that combines TAZs?  If you do, would you have a correspondence file to share with us, and the purpose for which this aggregation was made?

 

Thanks,

 

--Tom Krenzke

Westat