Project management frameworks describe the preferred approaches to project quality management, as well as applicable methods and tools. Despite this, quality problems in the construction project are still widespread. This study aimed to identify crucial quality-related factors in construction project management and find relations between them, to help researchers and project managers better respond to quality issues. A systematic literature review (SLR) was used to identify previous studies on quality-related factors. Literature review and further quantitative analysis revealed that quality-related factors are related to three categories: Quality of project process, quality of organisational processes, and quality of results (products), which together create the quality of the whole construction project. The results highlight quality-related factors (14 related to the quality of processes, 6 to quality of an organisation, and 13 to quality of products) that should be taken into account in further research, as well as planning and executing construction projects. Their inclusion at the planning stage should help project managers, sponsors, and steering committees avoid or minimise quality-related problems. Moreover, this study sheds an interesting light on quality. We found that the quality of processes and quality of an organisation has precedence over the final product quality. Based on the results of the study, structural equation modelling (SEM) was used to create a null model that will be the starting point for further research in the construction enterprises.

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.

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Purpose: The goal is to research how tourism companies encourage organizational creativity and thus gain a competitive advantage. The aim of this paper is to answer the question of whether the competitive advantage of tourism companies in Bosnia and Herzegovina can be improved by encouraging organizational creativity. Approach/ Methodology/ Design: For collecting data, a survey questionnaire was developed. The survey questionnaire was distributed electronically to tourism enterprises in Bosnia and Herzegovina. An econometric analysis is employed in order to prove the positive correlation between creativity and competitive advantage of tourism companies in Bosnia and Herzegovina. Findings: The results of the research showed that in order to achieve a competitive advantage, companies can manage creativity by encouraging: individual creativity whose existence is conditioned by the ability to think creatively, intellectual capacity, motivation and freedom of decision of employees. Based on the obtained research results, team creativity can be realized when employees develop a tendency to share knowledge, have confidence in the team, and that the organization ensures a free flow of information. Practical Implication: A model of creativity and innovation is proposed in this study. Based on the results of the study, the model could be applied to other transition countries in the region. Originality/Value: A special contribution of the paper is the model of integrative creativity to tourist companies.

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