Bollards
In uk.transport, John Rowland wrote:
A solution could be to give the different styles of bollard different
asymmetrical shapes at the bottom, with matching differently shaped
metal frames set into the concrete - then it would be impossible to
switch them or put them in the right hole the wrong way around.
That seems rather inflexible. I'd have a sticker on the diffuser showing
the proper sign. And, for good measure, which way it should face. :-)
--
Mike Barnes
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