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The existing approach to data modeling allows to put in an information system only a structure for their factographic mapping. Meanwhile, in reality, data exists within the context which is some user's skill for obtaining them. In the previous study, a model for representing the user's skill was developed. This model represents data in a form of possible action, which, depending on the situation, allows obtaining the expected data. The developed model has such advantages as providing flexibility in accordance with...

Besides the effective traffic management on sections of the road network, important for large cities and metropolises, the problem of eliminating the negative consequences from the delay points is topical. The delay point is the part of the road network on which the vehicle has to stop or slow down due to obstacles. The greatest difficulty is the fight against unforeseen delay points that occur on multi-lane roads at an arbitrary time in an arbitrary location. Examples of such delay points include traffic accident...