Airservices explored the possibility of moving further south the point at which aircraft turn west after departure from Runway 16. After making this turn aircraft pass over St Albans. The investigation found that this was not feasible for two reasons. While it would result in benefits for Ardeer and St Albans, it would move the traffic and noise to Sunshine. In addition, aircraft would remain on the runway heading for longer and this would hamper efficient operations. The current procedure allows air traffic control to clear the next aircraft for take-off after the previous one has made the turn. If aircraft maintain the runway heading for longer, this means that more time must elapse before the aircraft behind can take off which would slow down the throughput of aircraft. The proposal was found to be unfeasible because it was not considered to be a noise improvement overall and for efficiency reasons.