On Thursday, February 25, 2021 at 11:31:36 AM UTC, NY wrote:
"Paul" wrote in message
...
The size of the bollards, provides a hint as to what
the company thinks of its clientele.

https://www.reliance-foundry.com/wp-...rds-page-4.jpg
One of the problems with a lot of bollards at the end of a parking space is
that they aren't tall enough. If you reverse in, or if you drive in forwards
and your car has a long bonnet, there comes a point when the bollard
disappears below the bottom of the relevant windscreen as you get fairly
close. Then you have to guess how close you are. If only the bollard was
made about 4 feet tall you would always be able to see it, and so judge when
you were getting too close. It's OK if you have a reversing camera, but not
all cars have one - and it doesn't help if you drive in forwards. And
parking sensors usually only "see" objects at the corners of the bumpers:
something that is dead central goes undetected.

Of course even a tall object *can* go unnoticed :-( Both my wife and I have
reversed at very low speed into (in my case) a road sign, and (in my wife's
case) a telegraph pole that the parking sensor didn't pick up. And in both
cases the pole was right in front of the sensor (*), so it *should* have
been picked up, and it was in the gap between the rear window and the field
of view of the door mirror, hidden by the C pillar., at the moment of
impact.


(*) The telegraph pole actually knocked the sensor back in the bumper,
proving that it was central to it.


My problem was the post type bollard was central to the rear of the car and the reverse sensor didn't pick it up. Expensive bloody repair