Toon Bongers is a PhD researcher at the Ancient History Research Group, Department of History, and Historical Archaeology Research Group (HARG), department of Archaeology. His research focuses on the role of waterways in the Roman-era transport system of the Scheldt and Meuse basin of Northern France, Belgium, and the Southern Netherlands. The past transport network is reconstructed by combining palaeogeographical and environmental data with identified road sections and waterways. Regional differences in travel time, transport cost, and overall accessibility are revealed through GIS-based spatial network analysis. These results will be (in)validated by investigating settlements, agents (or professional groups), and economic proxies (e.g. distribution of goods).