This paper presents the reasons of the choice of factors "the household income" and "the car quantity per person" in car ownership reserching. The author analises the mutual influence of the factors.

Keywords: the car quantity, the household income

This paper presents the reasons of the choice of factors "the household income" and "the car owning period" in car ownership reserching.

Keywords: car ownership, automobile's quantity

This paper presents the features of the simulation model using, the describtion of the simulation madel of the system of the number of passenger cars in the city road network forming process. The author views the mathematical models of the laws, the simulation model of the process and its accuracy testing.

Keywords: simulation model, mathematical model, number of passenger cars, the city road network