Resumen
The paper presents a traffic forecasting model for a road section based on a computer model of the transportation system of a traffic gravity section. Traffic forecasting is an integral part of the process of designing of road facilities, starting from investment feasibility study to developing of working documentation. Determination of transportation and distribution of cars in sections are performed under a set of interrelated factors. Complete and valid consideration of these factors for complex road networks is possible only by means of mathematical models and corresponding software applications. Accuracy and consistency of the forecast determines validity of almost all the main characteristics of the designed object starting from direction of the route and location of connection points to the existing elements of the road network, ending with specific planning solutions for road facilities.