Multiple to single polygon attribute transfer

Discussion created by planoc on Oct 22, 2011
Latest reply on Oct 27, 2011 by planoc
I am attempting to get demographic data attached to census blocks into a layer of transportation analysis zones (TAZs) which are also polygons.  I need to move things like total population to the TAZs because it doesn't exist there and they are my primary unit of analysis. 

The issue here is that a) the blocks are smaller than the TAZs so there are many blocks contained within one TAZ and b) the census block and TAZ boundaries do not line up (are off by maybe 12-35 meters). 

What is the best way to aggregate the census data from many blocks into one TAZ while not having to deal with slivers and endless editing? 

Thanks for any and all help!