The air transport traffic grows up everyday. One could think that in order to handle all this new traffic the only solution is to build new facilities but it's a fact that today's limited resources are not optimized, therefore the airports have less capacity than they could. The problem is not only found in the limited resources but also in the limited airspace the ATC works with and the fact that the companies try to ensure their punctuality. All in all, every part acts like an individual prioritising their own needs in a way that creates a kind of fight between them to get what they want. The thing is that the only way to have all these needs covered without building new facilities and under valid safety regulations is making a holistic planning system and sharing information between them. The project CLOU "Co-operative Local resOUrce planner" is the first prototype of Total Operation Planner. It makes a prognosis of the demand and capacity the airport will have and determines when the airport will face a bottleneck situation. Then optimises the planning to minimalise the waiting times and queues. In order to make it all a reallity, there is the need of a constant good comunication with the ATC, Airport and Airlines.