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.

increasingly common occurrence of rain with a significant amount of precipitation in one hour, which causes floods. Floods cause great material and intangible damage per population and often endanger human lives. The road network in such situations has crucial importance to take urgent intervention measures and rescue people, animals and material goods. This paper is focused on the natural flood disaster and its influence on road infrastructure and presents the risk assessment methodology and determines critical road sections of main roads in the Federation of Bosnia and Herzegovina, analyzing data on 100-year floods.

AbstractTwo-lane rural highways represent the absolute majority of road networks globally, but there is a noticeable lack of research on this type of road for traffic planning purposes. This paper ...

When reconstructing existing or constructing completely new intersections, the main problem is determining the type of future intersection. Capacity is one of the key indicators that influence the choice of traffic control type. In this paper, using different scenarios of theoretical traffic flow distributions and traffic volume scenarios, the authors have determined the applicability area of two-lane roundabouts. The results obtained were used to improve the existing applicability diagrams of the various intersection types presented in several issues of US Highway Capacity Manuals (US HCM). Capacity in each scenario is determined using HCM 2010 and Hagring methods with practically obtained values of the time gap acceptance parameters.

Building Information Modelling (BIM) is a relatively new technology. The industry, especially when it comes to infrastructure projects, is just beginning to realize the potential benefits of it. Large capital projects are being done today using BIM technology and standards, while in Bosnia and Herzegovina today, we do not have a project implemented by it. BIM is still exhibiting varying states of maturity among its participants. The research was carried out in B&H to realize perceptions of BIM in the infrastructures projects from the perspective of different participants (investor, consultant, designer, supervising engineer, contractor, supplier). The following aims are to demonstrate perception about BIM, the willingness to apply it, and different varying states of maturity among its participants and the current degree of application in practice

Efficient roadway management requires knowledge of the structural capacity of the roadway or the load-bearing capacity of the pavement structure. In order to determine the existing conditions of the pavement structure and define appropriate intervention measures, it is necessary to determine relevant impact on surface of the pavement structure on homogeneous road section. The aim of study is to investigate influence of distance between measurement spots of deflection to the value of relevant deflection. Based on calculation of representative deflections, error values were obtained depending on range of deflection measurements spots and subsections length considered.The key question is whether it is possible to obtain qualitative and quantitative data on the basis of which the structural state of the overall network with acceptable error can be estimated by increasing distance between measurements spots.