The Role of Intersection Geometry in Urban Air Pollution Management

Ammar Šarić (), Suada Sulejmanović, Sanjin Albinović, Mirza Pozder and Žanesa Ljevo
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Ammar Šarić: Faculty of Civil Engineering, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina
Suada Sulejmanović: Faculty of Civil Engineering, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina
Sanjin Albinović: Faculty of Civil Engineering, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina
Mirza Pozder: Faculty of Civil Engineering, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina
Žanesa Ljevo: Faculty of Civil Engineering, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina

Sustainability, 2023, vol. 15, issue 6, 1-24

Abstract: Air pollution represents one of the most complex problems of humanity. Traffic contributes significantly to this by emitting large amounts of harmful gases. This problem is particularly pronounced at urban intersections due to frequent changes in vehicle movement dynamics. This paper primarily presents the influence of intersection geometry on pollutant emissions levels. In addition, the influence of various traffic policies promoting greater use of public transport and zero-emission vehicles is also examined. The research combines the field part of recording existing intersections in Sarajevo, Bosnia and Herzegovina with traffic microsimulation. Detailed data on vehicles’ movements were obtained by advanced video processing using the DataFromSky tool, while the PTV Vissim 2022 and Bosch ESTM (2022) software were used to simulate traffic and estimate emissions at geometrically different intersections. The results showed that, in saturated traffic conditions, signalized intersections cause up to 50% lower emissions compared with two-lane and turbo roundabouts and that the impact of the geometric change is more significant than the impact of zero-emission vehicles. In unsaturated conditions, the differences in emissions at different intersections are negligible, with the highest reductions in pollution achieved by using zero-emission vehicles.

Keywords: emission; intersection; two-lane roundabout; turbo roundabout; microsimulation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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