LTReikšminiai žodžiai: Geležinkelio transportas; Geležinkelis; Išlaidos; Keleivių transportavimas; Mažinimas; Modeliavimas; Modelis; Optimizavimas; Pajamos; Sumažinimas; Expenses; Income; Income, expenses, reduce, model; Model; Modeling; Optimisation; Passenger transportation; Railway; Railway transport; Reduce.
ENPassenger transportation by railway is fast, safe, convenient and affordable for people, but it is usually not profitable for the state. Therefore, making passenger transportation profitable is a task of vital importance. Various calculations are used to optimize this process. The paper considers the problems of economical passenger transportation which may by described by two models: the first model is based on the assessment of income-expenses of separate services, while the second model is related to the assessment of expenses according to their types. [From the publication]