11.   Byers said he was waiting for a report on airport capacity due in May.

12.   Inadequate airport capacity is a significant contributor -- along with bad weather -- to increasing incidences of flight delays, a Clinton administration official told Congress Thursday.

13.   This partly reflects transport infrastructure limitations, especially airport capacity.

14.   Wong also urged operators to expand airport capacity to cope with a projected rise in passenger traffic.

15.   While ample airport capacity was vital, Chen said new infrastructures and systems that could raise airport productivity and output while minimising operating costs were equally crucial.