Introduction - Construction projects are becoming increasingly complex and involve many stakeholders. A survey from Boverket shows that the construction industry today suffers annual losses of up to 100 billion Swedish kronor due to quality deficiencies. This indicates a need for improvements within the construction sector to ensure higher quality and reduced losses.
Photogrammetry is an older technique that originally served as a scientific method for measuring and recreating physical objects and their surroundings using photographic images. Over the years, photogrammetry has evolved and now enables the creation of scalable and detailed 2D maps and 3D models of an object or area, with the use of small drones.
Investments in digital tools can be a significant expense, especially for smaller companies that lack knowledge or data on whether a digital tool can improve their operations. Therefore, the aim of this report is to investigate how drone-based photogrammetry can contribute to improved project quality in a construction project by examining its benefits and challenges when used.
Method - The chosen research strategy for the report is an interview study where semi-structured questions have been posed to several Swedish construction companies that uses drone-based photogrammetry in their daily operations. A literature review has been conducted continuously throughout the process to enhance the collected empirical data and theoretical understanding.
Result - The results from the interviews indicated that one of the primary benefits of using drone-based photogrammetry is the ability to create a more realistic visualization of a project area. This enhanced overall view of a project has led to more efficient workflows, savings in both time and costs, and improved communication. Despite these advantages, challenges were also identified, primarily related to limitations in existing regulations and technical barriers. The regulations surrounding drone flights and photography could potentially restrict flexibility and impact both to the schedule of a project and budget.
Analys - The structure of the analysis section is based on content analysis. Here the authors present their interpretations of what can be inferred from the collected theory in relation to the results of the interview study. This is linked to the report's research questions which address quality, benefits, challenges, and the development of drone-based photogrammetry.
Discussion - Drone-based photogrammetry has the potential to enhance project quality within the construction sector. By enabling a more reality-based visualization of project areas, potential obstacles can be identified at an early stage, which can facilitate scheduling and reduce the risk of delays and extra costs. With better drone and software technology, a more autonomous use of drone-based photogrammetry is also predicted in the future. This would not only improve the accuracy and efficiency in quality assurance of a construction project but also make the technology more accessible to a wider user base.