Please take a moment to read & reflect.

[markjay]

Correctly designed speed humps are no problem when traversed at a steady speed within the set speed limit. The idiots who negotiate them with a repetitive cycle of braking and accelerating are the problem. It is they who increase pollution, make extra noise and wear out parts of their cars. I live on a development with a 20mph zone and speed humps. Most drivers hate the speed humps because they appear incapable of driving at 20mph. I have no trouble with them, happily (and comfortably) managing to drive within the 20mph zone without touching my brake pedal, except to avoid the occasional numbskull heading towards me at excessive speed as he bounces from hump to hump!

For many years there used to be a really nasty speed bump just outside Euston Station in London.

It was a very misleading, a ridge within a ridge, followed by a sunken but hidden from sighte
(when driving north to south).

The tarmac on both sides carried deep scars left by oil pans, exhausts, and chassis parts.

Forget 30, 20, or even 10 mph. The only way to cross it safely was dead slow, pretty much in the same way that you would negotiate a boulder with a Defender.

Last year it was finally removed and replaced with a sane version, wide and reasonably flat. Hallelujah.

I think the issue is that it is very easy to get speed bumps wrong.... and at least in London, far too many of them just make no sense at all.