Exploring the Rural Landscape of the Marches of the Welsh Borders in Roman Times Through Intervisibility Analysis

The distribution of archaeological sites in the rural landscape has attracted the attention of researchers over a long period of time, leading to the several site distribution approaches that have been proposed to explain existing patterns. The main disadvantage of some of these approaches is that they assume a priori a site distribution based on some assumed behaviour such as profit maximisation, among others. The objective of this article is to propose a methodological approach, based on network theory and visibility data, that can generate models that emerge from existing data without imposing a priori assumptions on site distribution. In this approach, archaeological sites are seen as nodes, and visibility between them as links. The approach was applied to a sample of Roman Britain sites located in the Marches of the Welsh Borders. As expected, a model of site distribution emerged from the proposed approach, and the results suggest that people in the Roman period organised the landscape in subareas according to functional as well as symbolic considerations.