Schiphol and its partners have applied additional guidance lines at the G/H-pier area to the Alfa taxiway. This will enable narrow-body aircraft to pass each other safely while taxiing from and to the G/H-pier. This reduces complexity and reduces the likelihood of on-ground safety occurrences. The evaluation established that the double guidance lines are in place and used when possible and beneficial (about 90% of the time). This resulted in less congestion on the taxiways and at the G-H pier area, and less workload for ground control.