The blacktop at the street end of my driveway is cracking after only 3 years (see photo below). (I think the repaving was poorly done.) The rest of the driveway has no cracks but is not perfectly flat. I have filled in some of the cracks with a sealer that is applied by melting with a blowtorch, but some of the blacktop edge is already loose, not attached to anything.
I am thinking of trying to cut off the last 6 inches of the blacktop and replacing it with cobblestone? Or with something else? But I do not know much about asphalt.
Would such a repair work? Would it save the rest of the driveway or just create more problems? Is making the repair as simple as cutting a straight line with a circular saw and putting in the cobblestone? Or do I need to protect the cut edge from the weather?
I live in New York State where there are many days above and below freezing.