ISMS partners jointly investigated a runway incursion in which an aircraft was cleared to enter the Zwanenburgbaan (Runway 18C), while another aircraft had permission to depart to the south. The study brought a number of measures to light which may further reduce the risk of incorrect line-ups. For example, the sight lines from the Control Tower may be improved. We have also conducted further research into the ways of working and operational procedures when taking-off from the Zwanenburgbaan Runway (18C). The measures are being worked out further and are being implemented.