On 19/02/18 15:07, Tim Streater wrote:
In article 2,
DerbyBorn wrote:

Was thinking 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
if a machine could do it.

Road would be blocked for a long period, and there are thousands of
miles of these roads. The main reason for the ruts is that such roads
are too narrow for today's vehicles, especially the stupid SUVs that
too many people affect. Combine that with too many of the drivers being
unable to judge the width of their vehicle so they don't go over as far
as they could, forcing the other driver into the ruts.


That's certainly my impression that it's ever heavier use, by bigger
cars, massive farm vehicles, more and bigger lorries and vans... and
that it is often the hedge or verge that is eroded leaving puddles and
potholes along the side of the tarmac. Round here heavy rain creates a
gully alongside the tarmac and it can do plenty of damage if you drop
your wheel into one. Not as much as damage as colliding with the
oncoming vehicle though.

TW