Efficient three-dimensional field documentation methods for labour cost studies: Case studies from archaeological and heritage contexts. (June 2020)

• Record Type: Journal Article
• Authors: Pakkanen, Jari; Brysbaert, Ann; Turner, Daniel; Boswinkel, Yannick
• Is Part Of: Digital applications in archaeology and cultural heritage. Number 17(2020)
• Publication Date: 2020-06
• Subjects: Greek architecture -- Three-dimensional documentation -- Labour cost studies -- Combining total station line-drawing and photogrammetry -- Monumental architecture -- Private houses; Archaeology -- Methodology -- Periodicals; Cultural property -- Protection -- Periodicals; 930.1
• DOI: 10.1016/j.daach.2020.e00141
• Languages: English
• ISSNs: 2212-0548

Abstract

Abstract: The aim of this paper is to present alternatives for three-dimensional field documentation methods which can be used to record architectural features for econometric labour cost studies. Combining reflectorless total station line-drawing with photogrammetry produces high-quality three-dimensional models of the targets which can subsequently be analysed to derive volumetric data of the employed building materials and the sizes of the individual elements. The case studies compare how different variations and combinations of three-dimensional architectural documentation can be used to create sufficiently accurate models for architectural energetics studies with varying degrees of time and expense in the field and in the post-processing phase of the research. The documentation method has been developed by the first author of this paper and disseminated through annual fieldschools conducted on archaeological sites. The standard documentation procedure is to establish ground control points and an alternative based on inbuilt instrument GPS systems is also discussed. Highlights: 3D field documentation necessary to produce accurate data for labour cost studies. Total station line-drawing and photogrammetry result in most versatile data sets. GPS-based photogrammetry is accurate enough for econometric studies. Field methods should be chosen based on research goals and resources. 3D techniques are easily learned and disseminated through hands-on fieldschool training.