Please excuse what may be a silly question from an 'outsider'.
Why has the ability of a controller to issue a conditional crossing/runway entry been withdrawn at a number of UK airports.
Having just experienced what appeared to be a busy evening at Manchester - circa 1815hrs - with all stacks being used and both approach positions manned, I was surprised to see the seemingly long gaps between traffic on finals for 24R. It look as if at least 6 miles was being used, and this appears to have exasperated the holding situation.
Is the withdrawal permanent?