Everyone has had the experience of sitting in a traffic jam, or of seeing cars bunch up on a road for no apparent good reason. Nowadays the quantity of vehicles in the Lithuanian cities are growing very fast. The necessity of circumstantial territory analysis emerged for increasing Transportation Systems Control demand. Microscopic traffic flow models are important for analyzing individual crossroads and assessing interaction between some vehicles. In this paper there are analyzed microscopic traffic flow model. In this paper there answered what effect is produced by small differences in the velocities of the cars. And we have that microscopic traffic flow is in stability when kT < 0.5 and not in stability when kT > 0.5. Its very important for modeling microscopic traffic flow model. In this paper there are shown that microscopic traffic flow in K. Mindaugo – Birštono streets has Puasson distribution. There are made microscopic traffic flow simulation model of K. Mindaugo – Birštno streets crossroad by Arena 3.0 program and performed regression analysis for prognosticating microscopic traffic flow queues.