In message
Paul Terry wrote:

In message , Graeme
writes

IIRC in the original installations each lane was monitored by it's own
set of cameras. The assumption was each set was independent all through
the chain. Not necessarily true but urban myths get taken up very
rapidly.

According to the manufacturer of SPECS, writing in 2008 and quoted in
the article in The Register reference up-thread, it was no urban myth,
but simply the case that the cameras were not authorised for use in
situations where a vehicle had changed lanes between check points:


You misunderstood, the urban myth was about the reason the system didn't
work. I doubt the average motorist has even heard of HOTA.

--
Graeme Wall

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Transport Miscellany at www.greywall.demon.co.uk/rail
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