Why doesn't HK use 07L for departures and 07R for arrivals? Surely this would cut down immensely on the ground traffic heading for the BAC and the cargo apron. BAC & cargo A/C could depart 07R when a gap was available and if not cross via K4/K1 (G/S fluctuations noted) & N to depart from 07L, thereby not interfering with any other flows.