Phased Accuracy Analysis in Road Construction: Using Bim and Photogrammetric Output

Abstract

Abstract. The construction industry is experiencing a gradual shift towards digitization. Currently, this digitization is relatively limited, but the need for that digitization as well as for automation is large. Digitization in road construction in particular is even more dire than in the construction industry in general. It involves various tasks such as progress, quality and quantity analyses. In this paper a proof of concept is presented on the possible automation of accuracy analysis in road construction throughout the construction of a road. The used data is 3D as-design data on the one hand and multiple 3D as-built data on the other hand, with the former being modelled using the regulations formulated by the Flemish ”Departement van Mobiliteit en Openbare Werken” (MOW), and the latter being captured using a Real Time Kinematic Unmanned Aerial Vehicle (RTK-UAV). The feasibility of the proposed workflow is examined using a real test case. Conducting these quality checks regularly will provide a clear overview of the construction site progress. In this way, any delays or errors can be detected quickly, resulting in higher quality and reduced failure costs.