TRANSPORT MODEL
The process of traffic modelling plays an important role in the process of strategic planning of transport infrastructure development and investment allocation in the transport sector. The methodological approach in developing a traffic model largely depends on the purpose and aims for which it is developed. At present, most traffic models are focused on passenger transportation demand analysis. The main reason for this approach is the excessive volume of passenger vehicles in agglomerations that needs to be addressed in order to improve traffic flow and population mobility. Freight transport contributes significantly to these transport problems through increased load on transport infrastructure and the resulting negative impacts such as congestions, deterioration of road surface, environmental standards and lower quality of life of the affected population.The transportation of goods on a macroeconomic scale is a necessary precondition to ensure economic growth on national level and the satisfaction of population in terms of product demand. This function implies a continuous optimization of the transport process pursued by the carriers. It is particularly necessary to tackle this problem at the European macro-region level, which achieves above-average economic growth and is defined by the unfi nished infrastructure of higher transport relevance for individual transport modes. The territory of TRANS TRITIA consists of 4 regions from 3 neighbouring EU member states.
The TRANS TRITIA region is formed by Moravian-Silesian Region (CZ), Śląskie and Opolskie Voivodeship (PL) and Žilina Region (SK). The total area ofthe considered region is 34 069 km2 with roughly 7,8 million residents. The biggest agglomerations of the TRANS TRITIA area are the towns of Katowice and Ostrava, which form important metropolitan areas. Given the rather complex relationships within the transport process, which are based on the mobility behaviour of the population (passenger transport) and the ensuring of goods supply (freight transport), it is necessary to use transport engineering...