Simulation and improvement of traffic flows: A use case study on two selected Slovenian crossroads

Abstract

Transportation networks are becoming increasingly congested due to markets interconnection, consumers' needs, travelling etc. Implementation of additional links is not always possible, and therefore all possible optimisations need to be taken into account to enable more fluid traffic flows. One of the options is introduce traffic light logic that takes care of prioritization at individual intersections or nodes. It is necessary to ensure flowing traffic by upgrading the existing deterministic logic of fixed networks. The paper focuses on the analysis and the comparison of traffic lights logic programmes, specifically the fixed programme, the more advanced stochastic fully traffic-dependent programme and the adaptive programme. The analysis takes place at the Slovenian intersections Šoštanj, with one traffic lights intersection, and Podutik Ljubljana, which consists of four consecutive traffic lights intersections. The findings suggest that the introduction of adaptive logic enables improved traffic flow and consequently reduces pollution.