group polygons based on quantity

Discussion created by wverheijen on May 30, 2012
Latest reply on May 31, 2012 by m.gasior
I have a shapefile with 1400 polygons. Every polygon represents a zone in which household waste is collected. In the attribute table there's a field with the total amount of household waste collected in that specific zone.

In order to optimize the collection process I have to divide the shapefile into groups of adjacent polygons with a total amount of 15000kg collected household waste.

Does anyone know how to do this?