<<WE (the pilots) do not need the system, so why do YOU (controllers/BAA) require it. Please explain what the safety benefits are.>>
I do not believe that Topbunk speaks for all pilots - all those I've met have been 100% in favour of the system for the reason that BOAC mentions. Maybe if TB knew how many pilots get lost in broad daylight he'd change his views.
Speaking as a controller who used the system for over 20 years I do not think - in fact I KNOW - I could not have coped without it. Ground control is a very difficult task at a major airport, more so in the dark or bad vis. A system which functions like traffic lights to prevent incidents has to be a major safety feature.
Lastly, my first boss - an ex-wartime "ace" - sacked me with the words "Pilots do not need ATC"......