Irkutsk has extremely favourable conditions for developing the electric public transportation system. The basis of the regional power system is the Irkutsk hydropower station. It has a unique feature; the stability of seasonal power production throughout the year. Due to this factor, the cost of power production in Irkutsk is one of the lowest in the world.The master plan for Irkutsk was created in 1985 and was intended as a means to further the development of the tram network. However, ten years later, the tramline was excluded from the technical project of the new bridge across Angara River. As a result, private bus companies received the most lucrative segment of the public transport system and the municipal network of electric public transport became ineffective and received a negative economic balance.In 2008-2010 the transportation laboratory of Irkutsk State Technical University (TL ISTU) created the Transportation Master Plan for Irkutsk. The goal of this project was to forecast traffic and passenger flow distribution up to 2020.According to TL ISTU forecasts, the largest daily passenger and traffic flows are between the Sverdlovsky borough and the city center. TL ISTU has modelled several combinations of routes for the public transport system, including the consideration of a new bridge over the Angara River and arguing for the municipal trolleybus network development.

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The article is devoted to the issues of the transportation demand estimation. Existing methods to bring up to date the Origin-Destination matrix are reviewed. A regression method to update the passenger Origin-Destination matrix is proposed. The proposed method is compared with the method of calculating the Origin-Destination matrix using the population mobility data. The comparability of the proposed method with the standard method of calculating the Origin-Destination matrix is established. The characteristics of the transport mobility of Irkutsk city population are also established. The relevance of the research topic is determined by the growth of the level of vehicleto-population ratio and transport mobility of our country population that complicates the process of designing and managing urban passenger transport systems (UPT). One of the urgent objectives is the development of efficient methods to estimate the demand for transportation services, including ones to determine the distribution of this demand between UPT and individual road transport. Constantly updated information on transportation demand improves the efficiency of the management of the UPT system and improves the quality of transportation services provided to the population. Keywordstransport and urban planning, transportation demand, origin-destination matrix, travel time distribution, urban passenger transport. I.

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