After the recommendations following the Linate accident were published, it was decided to add the markings "Runway Ahead" on the Alpha taxiway at the point where it crossed the 12 undershoot. Where these markings exist, at ANY airfield, specific clearance is required to proceed beyond the holding point at that location. As you do not cross these markings when departing or landing then no such clearance is required. Any clearance to a location can have restrictions put on that clearance, at the time or subsequently. To take it to the extreme, just because you are cleared to London Heathrow does not mean that you can ignore the bovingdon hold.
That said controllers adapting to the new requirement are using different methods of presentation, either giving the taxi clearance and crossing clearance together ( a bit of a mouthful ), giving taxi clearance to the runway ahead marking then subsequently onward (two seperate transmissions and the chance of stopping ) or giving clearance all the way and crossing clearance as the aircraft approaches the marking ( two seperate transmissions and not fail-safe ).
It is a busy time of coordination for the controller as well as the pilot and the requirement and timing for this additional r/t is a discussion that is ongoing, as Wee Jock states, through the appropriate channels. There are many official forums available for any of your concerns to be heard and considered where as on here, well, for all you know I might be a sheet metal worker from Barnsley!
Last edited by Bagheera; 2nd Apr 2007 at 12:19.