Roi M. Improving the efficiency of organizational and technological interaction of motor transport enterprises

The dissertation is devoted to the decision of a scientific and applied problem of uncoordinated actions of various carriers in integrated transport process at performance of cargo automobile carriers. It is established that the internal potential for improving the efficient management of transport companies, as well as the level of their competitiveness can be increased by establishing organizational and technological interaction with partners. In order to justify such interaction, it is necessary to use the characteristics of random input streams, which are signs of their compatibility, unevenness, order. Rational schemes and parameters of interaction of cargo road carriers are substantiated taking into account signs of compatibility and time windows of performance of the transport tasks making a stochastic stream. The initial data and conditions of the formulated task of planning the execution of orders are performed according to the criterion of maximum profit of the transport company. Mathematical interpretation refers to this problem as distributive in its content, multiparameter and nonlinear - in the form of a model. Methods of nonlinear programming with establishment of boundary conditions are applied. It is proved that solving the problem of nonlinear programming gives more than a twofold increase in the total profit in comparison with a similar linear problem. Stable statistical data on average tariffs for transportation were obtained, but such data could not be formed in relation to the cost of services, the structure of parks, and the economy of lease relations. It is shown that the lack of such information about the competitor does not affect the decision on the feasibility of cooperation. To optimize the integrated transport process used structural modeling, which allowed to determine the distribution of own vehicles, the need for rent and the amount of information depending on the coefficient of compatibility of orders, the coefficient of time non-uniformity of orders in the presence of time windows. It is shown that the difference of the maximum profit with the optimal structure of the process can exceed other suboptimal options by 10-12 thousand UAH. with 10 known orders, 5 available vehicles, which is 71-73% of total revenue. Regularities in the execution of the stochastic flow of orders for transportation have been established. The first of them confirms the fact that the involvement of additional vehicles with an increase in the number of orders leads to the opposite effect, to an increase in the number of failures to fulfill orders. This pattern is valid to a certain extent, after which the inflow of greater intensity is served more stably. Another pattern indicates that the use of leased vehicles, which are purposefully directed to the loading points, reduces the total downtime of the total fleet. Both regularities give grounds to believe that the most effective measure to improve the operation of the fleet of main road trains in servicing the stochastic incoming flow of orders is to increase the number and increase the reliability of information about scheduled transportation. Measures to increase the level of loading of vehicles on long-distance routes are proposed, provided that the requirements of cargo owners are fully met. The results of the research are confirmed by their testing and implementation in transport companies. The practical significance of the obtained results lies in the scientific and methodological support of decisions on the management of the carrier with the use of cooperation with partners. An assessment of rational strategies of transport activity of motor carriers taking into account branch cooperation is also developed.