How can we motivate airlines to provide passenger figures as soon as they are available (booked, actual)?
In any CDM initiative, confidentiality is an issue and it is difficult to convince stakeholders about the obvious fact that informed decisions can only be made when information is actually available. Despite the approach to make them aware that resources in every area (immigration, check-in, passenger screening, etc.) can only be allocated reasonably when there are passenger figures available, you can include regulations about data exchange in the airport user or service level agreement.