It is a delay calculated by Skyflow as per submitted flight plan data by using a complex algorithm  and the delay presented on  C-ATFM Portal is as follows:

 o ALDT – ELDT or

 o CLDT – ELDT (if ALDT is not available) or

 o ATOT – ETOT (if ALDT and CLDT are not available) or

 o CTOT – ETOT (if ALDT, CLDT and ATOT are not available) or

 o Zero, (if ALDT, CLDT, ATOT and CTOT are not available)

Considering the complex algorithm used, it is always advisable to crosscheck delay to a flight with concerned Airline Operator

Collaborative Decision Making (CDM) is a process for ensuring that all stakeholder needs are considered before decisions are made in the ATFM process.

Together, these processes can optimise airport and airspace capacity and improve the efficiency and effectiveness of air navigation service provision

Air Traffic Flow Management (ATFM) is a service established with the objective of contributing to a safe, orderly and expeditious flow of air traffic by ensuring that ATC capacity is utilised to the maximum extent possible, and that the traffic volume is compatible with the capacities declared by the appropriate ATS authority