Apologies if I'm not going to explain myself too well, but I'm very new to this.
I have a layer with a series of separate polygons (squares) and another shapefile layer with different attributes and I want to clip that shapefile to my polygons so that the attributes are transferred to the polygons.
I have tried clipping, spatial joining and intersecting but none of them do what I need.
Here is what the attribute table for the road looks like. Initially it was split in much many more polygons, I have dissolved them by NoiseClass already, but had to give the option to have more than one polygon per NoiseClass as the shapefile is too large and it would otherwise crash.