Stansted is a strange case. It has in my eyes the perfect infrastructure that is well laid out on a massive plot of land. I don't think even starting from scratch again now much would be changed as it is that good yet passengers seem to hate the place voting it joint bottom with Luton which is running at over capacity until next year.
Stansted has spent millions upgrading its shopping facilities which brings in the cash but then stops many passengers from using them airside by making them queue for too long so they run out of retail time.
Stansted will know exactly how long it takes passengers to pass through security at different times in the day but they seem reluctant to put in the staff to fix the problem.