Thomas Thévenin is Assistant Professor of Geography, University of Burgundy, and researcher, ThéMA. He is the author of, with Schwartz and Gregory, “Railways and Agriculture in France and Great Britain, 1850 to 1914,” in Alistair Geddes and Gregory (eds.), Re-Thinking Space and Place: New Directions in Historical GIS (Bloomington, 2011); with Arnaud Banos, “Generation of Potential Fields and Route Simulation Based on the Household Travel Survey,” in Marius Theriault and François Des Rosiers (eds.)