London Banter - View Single Post - CCTV

[email protected] · November 17th 16, 12:50 AM posted to uk.transport.london

In article , (Michael R N
Dolbear) wrote:

"MB" wrote

It's too easy just to check you can see a picture from the camera and
assume it is recording.

Which is why there needs to be a system in place to check at some
regular interval that they are recording and that the recordings are
archived properly with that being logged.

The interim report says
Initial analysis of the tram_s OTDR indicates that some braking was
applied in the 180 metres before the 20 km/h (12.5 mph) speed
restriction board, but this was only sufficient to reduce the tram_s
speed from 80 km/h (50 mph) to approximately 70 km/h (43.5 mph) by
the time the tram passed the board and entered the curve on which the
accident occurred.
==
And
The RAIB_s ongoing investigation will include consideration of:
{. . .}
l any previous over-speeding incidents at Sandilands Junction;
==

Does this mean that trams' OTDR (and CCTV) data are archived so, eg,
any report of possible over-speeding can be checked against real
data on this and on normal running?

I don't know about practice on trams but common usage is to keep CCTV
recordings for a month only.

--
Colin Rosenstiel