This Orbis site has been around for years. It was last mentioned here in 2015, so I figured it's worth a bump, as Stanford has updated the interface and has added more data.
It's a map of the Roman Empire with data about travel time, distances, and costs. There are lots of variables to play with. The interface still is not the most intuitive, so do take time to poke around. There real are some great visualization tools, as well as hard data.
FWIW, the information gained here will apply to pretty much any civilization that is before motorized travel on land, and at sea as long as the primary ship is the galley. So, it covers most of the Middle Ages.
It's a map of the Roman Empire with data about travel time, distances, and costs. There are lots of variables to play with. The interface still is not the most intuitive, so do take time to poke around. There real are some great visualization tools, as well as hard data.
FWIW, the information gained here will apply to pretty much any civilization that is before motorized travel on land, and at sea as long as the primary ship is the galley. So, it covers most of the Middle Ages.