ibrahim - any subject is good if you have an interest in the topic and you have some ideas as to how to go about answering the topic.
The title "airport of the future" sounds a little vague, and maybe quite a common subject of discussion - might be difficult to come up with some interesting ideas of your own that have not been repeated many times before by other people. Of course if you have some thoughts which you can justify and that aren't already in standard textbooks, then this could be a very good area for your final project.
Has there perhaps been some section or module of your course which you have found particularly interesting or enjoyable ? This might be a good place to start in thinking of a topic
Alternatively, if you're really struggling, could you perhaps approach one of your professors and ask for some suggestions ? If they know both you and what's taught on the course, they're likely to have a good idea as to what might be reasonably within the graps of students on the course while satisfying the university requirements...
Last edited by davidjohnson6; 1st Sep 2013 at 21:22.