Was thiunking as I drove along a lane with deep ruts where the tarmac met the grass - and wondering what damage it may have done to the vehicle - that such lanes are a problem - the tarmak crumbles at the edges and keeps breaking away. Clearly constucting a road with curbs (kurbs?) woudld be costly - but having seen a machine continuously casting a centre barrier I wondered is a machine could do it.
Imagine a rotating trenching mechanism - toothed wheel - followed up by a concrete mixing and filling machine - possibly dropping in some reinforcement.
Could it work?