Mr. ATFCM
Brussels
ATFCM = Air Traffic Flow and Capacity Management
It is the way the Network Manager (former CFMU) handles air traffic over Europe.
When there is an imbalance between the demand of traffic and the ATC capacity, Network Operations implements ATFCM measures.
A final result may be that your flight receives a delay in the form of a CTOT.
How to deal with a CTOT and understand ATFCM principles, can be explained to your dispatchers by Mr. ATFCM.
More details at bit.ly/mr-atfcm