Definition: In this task, you will be given a passage to read. A fill in the blank question will be given to you.  Your answer should fit the blank appropriately.
Input: The growth in Commercial Air Transport ( CAT ) has eroded the operational freedom of GA , both in the air and on the ground at larger airports . Difficulty with access to larger airports is compounded by a decline in the number of aerodromes generally , and existing sites are often threatened with closure and re @-@ development for more profitable uses . The UK planning system is designed to focus on local issues , and consideration of the national impact of GA operations is not within its remit . This makes aerodrome development difficult , often subjecting those that successfully negotiate the process to restrictions in use . fill in the blank  : The growth in Commercial Air __________________ ( CAT ) has eroded the operational freedom of GA , both in the air and on the ground at larger airports . 
Output:
 Transport 