Inadequate traffic control

Name(s): 
Lack of traffic management
Ineffective transport scheduling
Incidence 
European air traffic control suffers from inconvenience and delays for passengers and cost to airlines to its diverse, non-harmonized network, which comprises 54 separate traffic control centres using 31 different computerized systems produced by 18 companies, with 22 different operating systems and more than 70 languages.
Type 
(E) Emanations of other problems