Browsing by Author "Matlak, Mykhailo"

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    Centralized airport SLOTs allocation system
    (Національний авіаційний університет, 2020-12) Матлак, Михайло Сергійович; Matlak, Mykhailo
    Scientific and technological development in the XXI century changed a lot of industries. Innovations have not spared the aviation sphere as well, brought air transportation to one of the most demanded, fast, and widespread kinds of transport. Air carriers reacted immediately that demand had increased and began to gain the volume of transportation. However, the better part of significant airports was built in the previous century, and their infrastructure has not been designed for volumes of nowadays traffic. The rapid growth of air transportations led to a shortage of available aircraft parking places, runways, and ground handling resources. Air traffic continued to outstrip available infrastructure, therefore the number of delays grew very fast. Diversions of aircraft to alternate aerodromes have also become more frequent due to the impossibility of staying in the holding areas near the destination airports. The very high amount of ground and air delays coupled with diversions were leading to great losses for both air carriers and airports. Such situation would lead to the opposite effect, decreasing air transportation and slowdown in the development of the whole aviation industry. To avoid traffic congestions due to exceeding of airport capacity were invented airport SLOTs. They have specified allotted time for an aircraft to land or take off at an airport as well as a time limit for aircraft ground handling. Through SLOTs, airport authorities managed traffic volume, dividing it into portions. Uniform continuous traffic has allowed to serve air transportations without extension of airport infrastructure and to avoid constant delays. Usage of airport SLOTs also helped to deal with irregular distribution of frequencies of passenger flights in the big hub airports. Airlines that use the hub and spoke transportation concept have priority SLOTs in their own hub airports for useful transfer flights. At the same time, airlines, which use the point-to-point model, and have a desire to fly to the hub airports, have to revise their schedule to operate flights between rush hours of basic airport carriers. Equal distributions of frequencies give advantages for both airports and passengers. There is no downtime at airports, and passengers can choose more suitable time for a flight. Nowadays, if carriers want to operate any type of flight in a conventional airport, besides permission to land, they would need to obtain airport SLOTs. Airport SLOTs obtaining procedure is not hard but may be very long. There are a lot of factors that can influence it, for example, type of aircraft, kind of operations, operator certificates, etc. All mentioned factors in busy airports make SLOT obtaining procedure unbearably difficult, and it leads to decrease in the attractiveness of the airport for operations.