Density estimation of polygons (shape file)

Discussion created by mahaghazal on Jan 18, 2013
I would like to create a density estimation map of many overlapping polygons that are in shp. file format. But I don't know how. I see that Kernel Density requires either point or polylines as the input. Is there a way to get around this or another tool which will create a density map from polygons?

I am using arcmap 10.

Any help would be appreciated. Thanks!