PROBLEM-SOLVING METHODS FOR DETERMINING OPTIMAL STRUCTURE OF MUNICIPAL PASSENGER TRANSPORT FLEET

PURPOSE. This paper proposes a procedure for determining an optimal structure of the urban passenger transport rolling stock that will enable to achieve the highest possible quality parameters of transport service considering the restrictions of economic efficiency of transport organization operation. METHODS. Formation of the optimal structure of the rolling stock is reduced to the problem of determining the rolling stock capacity and traffic intensity for each route in such manner as to achieve the minimum coefficient of dynamic use of capacity in the route network. This also takes into account the mutual influence of routes and implements imposed restrictions of economic efficiency represented in the number of transported passengers per one kilometer. RESULTS. The mathematical model introduced in the article is implemented in the form of the algorithm of the directed search for the variants of the program of passenger transportation within the route network. The efficiency of the proposed algorithm is illustrated on the example of an abstract network of two interacting routes. Being applied in practice, the proposed procedure will determine a transportation program in the route network, which will ensure the best quality of transport service for the existing tariffs and volumes of budget subsidizing of the system of municipal passenger transport. CONCLUSIONS. This article presents a mathematical model determining traffic intensity and rolling stock capacity for each route of urban passenger transport in order to ensure the best possible quality parameters of transport service in the network of interacting routes when implementing the restrictions on the economic cost-effectiveness of transport organizations. The efficiency of the problem-solving algorithm is proved on an abstract network of two interacting routes. The quality of transport services is assessed using a coefficient of rolling stock capacity that is one of the main indicators that determines the trip comfort. The economic cost-efficiency of routes is estimated on the basis of the number of passengers per one kilometer of travel.

occupancy rate of the rolling stock, structure of the rolling stock, coefficient of capacity use, program of passenger transportation

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