In article <[email hidden]>,
David Off said:Tom Kunich said:
In Europe I don't think they have sealed crankcases like
they do in the USA
Not sure what this means... but there is a lot of oil and
diesel on French roads.. there are a lot of vehicles that
run on diesel as it is cheaper than petrol, around $1.10
per liter rather than $1.30. After a dry period it is
lethal. The white lines were also painted with non-grippy
paint until recently and this causes problems for two
wheeled road users.
He's probably referring to EGR valves, but I don't think
that's been a difference for some time. The big deal is
that, as you say, diesel is common.
Gasoline is just as slippery as diesel (I've dumped gas and
then slipped on it; it's really really slippery) but
evaporates very rapidly. The half-life of a gas spill is
minutes. Diesel is less volatile, and like motor oil, will
happily just sit on the road.
Quoted message said:Roads also tend to be flat or hollow rather than convex,
or even inverse cambers, the Romans figured this one out
2,000 years ago so I can only assume this is a hang-over
from the days when the drain/gutter ran down the center of
the roads in France. The inverse camber thing is done by
the highways department to slow down drivers on bends but
I've been caught out once on a bicycle by this. Seems
counter intuitive to make roads more dangerous.
Inverse camber to slow down drivers? Really? Are you sure it
isn't just an excessively crowned road? that can lead to an
off-camber in the outside lane.
If they want to slow down traffic, one of the best ways is
to paint lines on the road that give the optical illusion of
narrowness (extra-wide lines at the side of the lane are a
good one). This slows drivers down before the curve, not by
pushing them off mid-turn. Yeesh.
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