"Commander Kinsey" wrote in message
news
They have a seatbelt, perfectly adequate for a sudden stop from walking
speed.

But impossible to guarantee that it will be worn.
And it looks bad if you kill too many people.

So why should they go a quarter walking speed?

Likely because it isnt cheap to go much faster safely.

On Fri, 15 Mar 2019 09:06:10 -0000, Brian Gaff
wrote:

Actually when I asked this question of an installer he said that they are
built to be safe, not rapid, and if they ran faster and jammed then the
jolt
may be very dangerous for the occupant.


That to me sounded a bit like 'cos they always are made this way, I only
fit them guv, nothing to do with me'
Still there may be some merit in the plan, unless you really want to
wear a
crash helmet, neck brace and a three point harness to use one.
Brian