Mathematical Models Concerning Location of Vehicular Gas-Filling Stations within Cities

The optimal criterion concerning NGV-RCSs locations in the cities and the mathematical model of vehicle flow distribution on the road network of cities were analysed. It has been determined that optimization of NGV-RCS locations is a multi-criterion problem having no definite solution. The criterion for solving the problem can be the number of vehicle flows within street and road network which requires solving the problem of forecast, in turn, the forecasting problem consists of two subproblems ? formation of vehicle flows and optimization of vehicle flow distribution within street and road network. The problems are of NP type, moreover, there are no algorithms making it possible to obtain accurate solutions.