Ian Jackson posted

In my local town, there are 13 speed bumps in a 30 limit, all in a
distance of about 600 yards. They are the individual, rectangular type,
in pairs - one on each half of the road.

Motor bikes can pass between the bumps, or on either side. Chelsea
Tractors (which comprise at least half the vehicles in this affluent
part of the world) can usually completely straddle one the bumps.

Yes, that sort of bumps are stupid. You need the continuous ones right
across the road. I really don't understand why local authorities put in
the square type. Perhaps because of their cycling fetish.


It's really only those with 'ordinary' cars with a 'normal' wheel width
that really suffer. You have the choice of having either the left side
or the right side of the car experiencing the full lift of centre of
the a bump, or partially straddling it - with both sides of the car
getting only a partial lift as the wheels pass simultaneously over both
of the sloping shoulders.

Despite it being a 30 limit, I wouldn't dream of passing over any of
the 13 bumps at more than about 20mph. As I resist the temptation to
accelerate between the bumps, I end up travelling the whole 600 yards
at 20. [I don't mind this at all - and would indeed be happy to do the
same if there was a bump-less 20 limit.] However, I then often end up
with a procession of vehicles following me at 20mph. There are
occasions when one vehicle will suddenly break rank, and tear off
furiously to the front of the procession at a hell of a lot more than
the 30 limit.

Very rare, I would think. Few drivers are as ****witted as all that.
I've driven in an area with those speed bumps for 25 years now and have
never seen anyone do it.

As the road with the bumps ends at a 'Give Way' sign at a T-junction
with another road, I usually reach the end immediately behind the
vehicle that couldn't wait behind me, waiting at the Give Way sign.

The whole thing is crazy.

There are no traffic measures that give complete protection against
utter imbeciles. The best you can do is deter them doing the most
dangerous things, like driving down residential roads at 50.

--
Jack