The need to develop scientific regulations is determined by the basic conditions and new trends in the global market for linear technologies, the problems of functioning of maritime transport enterprises on the market of transportation services.The experience of the development of the global maritime market confirms the influence of the number of operators on the economic balance of the subsystem. As the number of shipping and carrier companies increases, the degree of satisfaction of the need for goods transportation according to urgency criteria increases. At the same time, with an increase in the number of shipping companies, competition in the main segments of the freight market intensifies, which ultimately leads to a slowdown in the growth of tariff and charter rates at development stages. Therefore, a relatively low rate of return on capital, especially for vessels with a high level of innovative technologies, remains. The key players in the container market are the state business and diversified business.The conditions of operation of shipping companies within the maritime trade market system are analyzed. An assessment of the development prospects of linear shipping companies in the light of new trends. The process of consolidation of the container technology market is considered and evaluated, and the factors that are not conducive to cartel agreements are highlighted. Criteria features of the positioning of marine transport enterprises are identified.The specifics of competitive positioning of container terminals in the Black Sea-Azov region are noted. The analysis of the working conditions of national stevedoring container operators is conducted and the problems of their competitive positioning on the regional market of linear transportation are revealed. For example, a graphical model showing monthly dynamics of container turnover of Ukrainian ports in 2017 is represented.The parametric features of the functioning of container lines passing through the ports of Ukraine are substantiated. The conditions for achieving the adequacy of the technical and economic level of the national sea trading ports with respect to the requirements of the external system are noted. Thus, an information and logistic model is suggested. It reflects the interconnection between the system parameters affecting the sustainable development of the maritime business in the sector of container technologies. As a result, the conditions for making rational decisions regarding investments of maritime transport enterprises have been substantiated.

Topicality. The expediency of the development of scientific regulations is related to the main problems of achieving the competitiveness of the sea trade ports of Ukraine in the maritime trade market, first of all with the necessity: to achieve the adequacy of the technical and economic level of the stevedoring operators to the requirements of the environment; compliance with national needs and multimodal transport systems; support of national zones of international transport corridors; development of theoretical and methodological foundations for the competitive positioning of national maritime trading ports, taking into account the conditions of integration and globalization.Aim and tasks. The purpose of the article is to clarify new trends in the system of competitive positioning of sea merchant ports, to systematize the parameters of the competitiveness of national maritime merchant ports and to substantiate the factors of effective development of Ukraine's port infrastructure.Research results. The condition and conditions of the competitive development of Ukrainian seaports in the system of maritime trade market are analyzed. The assessment of the port infrastructure of the national terminal operators is given and the development trends and perspectives of the competitive positioning of the national stevedoring operators are grounded. The system factors and parameters of functioning of marine transport enterprises are grounded. The dynamics of cargo turnover of the largest container ports of Europe for the period 2015-2017 is presented and the main tendencies of development of container terminals of the world economy are revealed. The evaluation of the competitive functioning of state and private national stevedoring operators and the identification of the problem of economic stability of sea trading ports in the system of competitive positioning in the regional maritime trade market was conducted. The estimation of the relation between the profit rate and the cost of loading and unloading works of the largest ports of Ukraine is presented and given, and the change in the structure of the cargo traffic of sea ports of Ukraine under the influence of new trends in the world maritime transport industry is analyzed.Conclusions. The systematic parameters of the competitiveness of Ukrainian seaports in the maritime trade market system are substantiated and the main principles of achieving the normalized economic results of functioning of the sea commercial ports of Ukraine are substantiated. The information-logistic model, which characterizes the influence of external conditions on the competitive positioning of national sea commercial ports, is presented. The main features of the competitiveness of national stevedoring operators are revealed. The new tendencies in the system of competitive positioning of the sea commercial ports of Ukraine are specified, factors of competitive stability of the port infrastructure under the conditions of risk and uncertainty are grounded. The revealed standards and restrictions of development of the port infrastructure of the national maritime trading ports in the system of globalization and integration.