It's interesting to compare this situation with how it's dealt within the London TMA.
If there are weather problems,or capacity restraints,then the traffic inbound for LTMA is held on the ground by CFMU.This is to prevent the overload situation on the problem sectors.The delays can be considerable,but it is a managed situation.
What is needed is a method for HK to flow it's arrival rates with it's closer FIR's,and stop traffic entering HK airspace.The long hauls that have been airborne for hours are given the priority.
An Airprox some years ago was examined by the AAIB,after 2 aircraft did get close together in an overloaded airspace.The result of that,contributed to the way it's done now.
Please don't tell me that HKCAD are going to let that situation occur again,before adopting modern procedures.
