Ah - I was told that only the fire brigade were allowed to use the key - was that twaddle (technical term!) as well then?
What I had in mind was in new refub with great compartmentisation - its a 2 stage alarm - the first stage someone investigates to see whats happening (after training) if the alarm is not switched off after the first knock - it goes into full evac mode and everyone kicks out via the escape stairways.
What I wanted was at the first stage, persons in wheel chairs (exception none currently in situ) who enter the building will be given a have a pager linked to the alarm. When the first stage of the alarm goes off, they are paged and they make their way under their own steam to the firemans lift (in a compartment with 2 hour fire separation) and wait.
A trained member of staff gets into the firemans lift and goes to the floor in question (the building's security system means we know where they are) and comes back down again with the person in question - all within the time of the first stage investigation of the alarm. If the alarm is not reset within 5 mins, the main alarm kicks off so there shoud be ample time - if the alarm is reset - the person can simply go back using the normal lifts.
The lift does not go to the ground floor until the 2nd stage (full evac) alert. If the person cant get there in time, my suggestion is go there and wait until a trained member of staff arrives with an evac chair or now I know non fire brigade staff can use the lift, could they use the override switch and get it to go back up to rescue? I'm not a fan of evac chairs although I guess we still need some in case the lift isnt working!