"mark" wrote:
wrote in message
...
On 24 Mar, 20:49, "mark" wrote:
The warning says something like: Will come to a Sudden Stop at the Red
Line.

How does that work?

mark

Inductance loop buried in the ground at red line.Puts the brakes on.
Assuming you`re talking about shopping trolleys but just forgot to
mention it?

Thanks for that.
I thought shopping trolleys were things pulled along by old ladies, often
finished in a tartan effect.


Not all old ladies are finished in a tartan effect.

Some are finished in camel hair effect, others in tweed effect. ;-)