Would it help drivers if buses were fitted with a camera at the back to cover some of the blind spot?
Some buses do have rear-mounted cameras to aid with reversing, I believe. Haven't driven any like this myself, but I see no reason for the screen used for this not to be on all the time. Maybe other bus drivers can enlighten me? Mirrors and shoulder checks, for the most part are adequate, providing they are used. Bad weather can be a problem and this is where hi vis and having lights on during daylight can help be seen. Fog is the worst weather as a film of dew mists up the mirrors and the outside of the glass. Heated mirrors are good for this - until the bus gets to about 5 years old and "any old mirror will do if it fits" after that.
The company I work for are very safety conscious and we are trained to a very high standard. Their buses are fitted with gyroscopic equipment to detect side swing and harsh braking. We're taught to drift around parked cars rather than swing out and back in again and this kind of driving could be a lifesaver for a ninja hidden behind foggy mirrors.
There's always going to be new and inexperienced bus drivers about - we do get quite a high turnover of staff due to the nature of shift work not being for everyone. And I presume all bus companies have the depot nutter who just doesn't care.
On the whole, "canteen talk" regarding cyclists is that bus drivers have no real love or hate for them. Around half a dozen drivers are even taking to the roads on pedal power since the Olympics! And in any case, bikes don't really get in the way in Redditch, and buses only get in the way of other buses.......