Information flows research in trunked radio network for aircraft ground handling operations

The information flows of communication systems during aircraft ground handling operations at one of the largest airports in the Russian Federation are studied to determine the minimum sufficient resource of the radio communication system as one of the communication channels. The technological schedule of aircraft maintenance is given and its example shows the complexity and parallelism of aircraft maintenance processes. Also on the basis of the technological maintenance schedule the list of necessary communication resources with description of specific works of each group and their expected load is developed. Three stages of research for modernization of communications are described. At the first stage, the available and necessary conditions for the functioning of communication systems under conditions of frequency resource shortage are established and the communication technology to be implemented is determined (in this case it referred to the construction of DMR Tier III radio network). At the second stage, statistics on the use of the radio network is accumulated, specific tasks, the work of groups, and their radio exchange is analyzed. At the third stage, based on the data obtained earlier, a conclusion is made about certain weaknesses of the system, recommendations are developed for its modification to reduce the number of customer service failures and improve the efficiency of aircraft ground handling operations, as well as for the work of emergency and security services. The study showed several key indicators, namely: the availability of communication channels, the number of communication channels to fulfil the technological service schedule, retention of the communication channel, and strict adherence to negotiation regulations.