The study of traffic flow on selected road network in Cracow

Abstract

The paper describes the work involved in a large research project, the aim of which is estimated emissions in the Cracow agglomeration. The project envisages the identification of emission sources as well periodically change it during the year, the month and the time of day. The results of the research presented in this paper concern only preliminary estimation of traffic flows at selected points of road network of urban agglomeration. The research methodology has been developed to meet the requirements of the developed model, which takes into account the different types of sections of the Krakow road network, different time of day, different days of the week and, most importantly, different types of vehicles together with their emission categories. For practical reasons, a number of simplifications have been made, the more important of which are the merging of certain emission categories and the adoption of the average speed of movement of vehicles on the test section. The measurements were carried out by a group of about 150 trained specialists from the so called - ‘car’, with knowledge of the issues of vehicle identification in terms of emission of toxic components of exhaust gases. The measurement results will be inputs to the overall pollutant emission model.