On Nov 24, 11:11*pm, D7666 wrote:
On Nov 24, 10:50 pm, (Neil Williams)
wrote

DOO mirrors are certainly fitted at all the stations on that route.

Watford / Snorbens has got mirrors but the 321 is crewed.

I'm probably wrong but I thought mirrors are an aid to driver to see
guard but DOO needs CCTV ?

I'm now trying to think where I have been DOO where there are no
cameras.


I seem to recall that the former Silverlink AC routes (i.e. Euston -
Northampton and Watford - St. Albans) are driver / guard operated as
the DOO mirror positions were surveyed for class 317s and needed to be
repositioned / resurveyed for use by 321s. I think that this was due
to the 317s having a side cab window, which the 321s lack (the door
window being further back than the 317 cab window). This work was
never done and so 321s remain crew operated. Several platforms have
lost their mirrors during the WCML rebuilding / platform lengthening.

CCTV is not necessary, as the 313s on the Watford - Euston line don't
use it at all stations. For example, see this picture at Kenton:

http://en.wikipedia.org/wiki/Image:K...northbound.JPG

where you can see the Southbound DOO mirror (at the 3 car stop), but
no CCTV monitor. I think that CCTV is only required where the platform
is curved (or maybe on the 'wrong' side of the train). Kenton does
have CCTV at the platform ends, for use by the Bakerloo trains.