Ústav stavební ekonomiky a řízení

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Quality and reliability of IFC/BIM models for public educational facilities construction projects via clash detection
(VILNIUS GEDIMINAS TECH UNIV, 2025-01-20) Juszczyk, Michał; Vaisnoras, Mantas; Kontrimovičius, Robertas; Hanák, Tomáš; Łukaszewska, Hanna; Ustinovichius, Leonas
This study investigates the reliability of monodiscipline IFC/BIM models in public construction projects of educational facilities through advanced clash detection and quantitative analysis. Data were collected from BIM models of two kindergartens and a school in Vilnius, Lithuania, representing different design disciplines. A mixed-methods approach was employed to analyse the number, types, and geometric characteristics of detected clashes. The research introduces innovative metrics, such as the Relative Quality Coefficient (RQC), Relative Uncertainty Coefficient (RUC), and Modified Relative Quality Coefficient (MRQC), to assess model quality and reliability quantitatively. The findings reveal a direct relationship between model complexity, clash detection precision, and the number of identified clashes, underscoring the importance of enhanced quality control measures in IFC/BIM models for public procurement. The study concludes that the implementation of these novel metrics can enhance the reliability of IFC/BIM models, thereby optimizing the design and construction process.
Cost analysis of water charge rates in the Czech Republic – Case study
(Warsaw University of Life Sciences, Poland, 2024-02-01) Oblouková, Aneta; Vítková, Eva
The article was conceived as an initial insight into the issues related to the representation of individual type costs (e.g. material, labor costs, property depreciation, etc.) in the price of water in the Czech Republic. The aim of the article was to point out the possibility of dependence between the size of the company operating the infrastructural property of water supply and sewerage and the representation of individual costs in the water price within the framework of the case study. As a sample that formed the outputs of the case study, 14 companies were taken, which were selected according to the unified regions of the Czech Republic. Both basic mathematical methods and elementary methods used in financial analysis were used in the analysis. Within the scope of the case study, it can be stated that there is no dependence between the size of the companies and the representation of costs. Among the largest costs from the point of view of financial representation are other direct costs, where the costs of depreciation, property repairs, rental property, as well as wage costs and material costs are mainly represented. Insignificant costs include, for example, energy costs, which are only represented in the range of 1.39–5.70% of the total costs. Therefore, in order for the results included in the case study to be considered statistically relevant, it is necessary to expand the sample and confirm or refute the initial findings published in this article.
Impact of the quality of technical specifications of the tender documentation on the construction projects' success
(EMERALD GROUP PUBLISHING LTD, 2025-05-19) Hanák, Tomáš; Mikulík, Michal; Soniewicki, Marcin
Before selecting a contractor and commencing construction work, creating documentation that describes the facility to be built is needed. Often, this documentation contains a large number of errors and deficiencies of significance. This study analyses a model comprising four latent variables and explores how three specific constructs - communication and change management (COM), project documentation supervision (PRS), and quality of technical specifications in the tender documentation (QTS) - contribute to construction project success (SPR).Design/methodology/approachThe original data were collected from experienced Czech construction implementation professionals. A survey was conducted using an online questionnaire. Partial least squares structural equation modelling was used for analysis.FindingsBoth advanced COM and effective and thorough PRS positively affect SPR in the context of the time-, cost-, and quality-related concepts of the Iron Triangle. The quality of the technical specifications of tender documentation serves as an important mediating variable suggesting an independent review of this documentation before it is used for contractor selection.Originality/valueIn contrast to prior research, this study aims to elucidate the significance of documentation quality in relation to project success during the initial phase. The delivery and subsequent approval of documentation are posited as critical milestones that influence the performance dimensions of the iron triangle, namely, scope, time, and cost. Therefore, we argue that communication and change management should be central, primarily in the pre-investment phase, to ensure ideal error-free documentation.
Strategic Entry of Czech Construction Companies into the Bosnian Public Procurement Market: A Comparative Analysis of Legislative Frameworks and Market Conditions
(MDPI, 2024-12-27) Matějková, Jitka; Dohnal, Radek
This article explores the strategic market entry of Czech construction companies into Bosnia and Herzegovina’s public procurement sector, with a focus on the intricate legislative, economic, and cultural variables that define this emerging market. Employing Bosnia as a representative case study, this research synthesizes traditional marketing frameworks like the 4Ps model with contemporary paradigms such as relationship marketing and value co-creation, delivering a multidimensional understanding of market navigation in transitional economies. The study employs a robust methodological approach, incorporating comparative legislative analysis, SWOT and PEST assessments, and primary data collection through stakeholder interviews and surveys. Key strategies identified include fostering local partnerships, aligning with sustainability imperatives, and adopting tailored market entry methods such as joint ventures and strategic alliances. The findings bridge theoretical constructs with actionable insights, offering a dual contribution: generalizable frameworks for international market entry and targeted strategies for navigating Bosnia’s public procurement landscape. By advancing the discourse on project-based marketing in construction, this research provides a comprehensive toolkit for both academic and practical applications. The conclusions drawn emphasize the need for innovative partnerships, collaborative value creation, and alignment with evolving market trends, offering actionable recommendations for policymakers, practitioners, and researchers alike.
The Effect of Railway Projects Increasing Safety on the Frequency of Occurrences
(MDPI, 2024-10-09) Hromádka, Vít; Funk, Tomáš
This contribution is focused on the presentation of individual research results aimed at evaluating the socio-economic impacts associated with increasing the safety and reliability of the railway transport route. The goal of the research is to propose and subsequently verify an original approach for assessing the impact of the implementation of investment projects, including measures aimed at increasing the safety and reliability of railway transport routes, on the resulting number of occurrences that happen on the railway in the Czech Republic. The proposed procedure is based on several key documents. In addition to already existing national methodologies, these are mainly the database of occurrences managed by the Railway Administration of the Czech Republic, including approximately 1000 occurrences for each year of the evaluated period (2009–2018), and information on 33 projects on the railway transport route, where the effects of their implementation on the overall frequency of occurrences are examined events in the subject location. The output of the research is a methodical approach for assessing the impact of the implementation of projects aimed at increasing the safety and reliability of the railway transport route. We perceive the impact on the occurrences from the point of view of the frequency of their occurrence and from the point of view of the socio-economic impacts that are achieved as a result of the implementation of the projects. From the point of view of the frequency of occurrence, a reduction in its value of 4.63% was found. As part of the research, the impact on the occurrence of extraordinary events is also assessed in the context of the scope of the railway transport route, both with regard to the length of the reconstructed track and also with regard to traffic performance.

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