Design of new and reconstruction of existing crossings is a complex task that follows the general procedure of verification established analytical suitability of existing and planned new arrangements. Interference in the organization of the intersection requires a detailed examination of the current situation and the situation at the end of the planning period of the facility. Since analytical proceed in many cases do not show the real picture of the actual traffic conditions and the impact of interventions in the organization of the crossings to traffic flows were further developed simulation methods of traffic analysis. With the desire to surgery with the most accurate information on the impact of changes in the geometry of intersections on traffic flows at intersections, so we use more and more manufacturing traffic simulations. In today's digital age, the market appears a lot of software tools which offer in addition to the analytical analysis of the possibility of making simulations of traffic. Despite the different methods used by software tools, one would expect that their results show the same problems in the traffic flows. This thesis mutually comparing two commonly used software tools for the manufacture of traffic simulations. A comparison was made in a real crossroads in Ljubljana. The task of a brief description of each programming models and tools for the current intersection provides a comparison between the average lengths of queues and delays for comparing different arrangements junction in the current time and the time after the planned life of the facility.
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