Ever wondered how high Roman taxi fares might get?

This may be of interest to some people - the ORBIS project. ORBIS is "The Stanford Geospatial Network Model of the Roman World" - a tool that allows you to calculate how long it would take, and how much it would cost, to move between one location and another.

The current version is here, but there is a pop-up warning that it works best with Chrome or Safari. (Presumably Firefox is so uncommon that it is unsupported?) You can either go ahead anyway, or switch to the old version.

(May also be of interest to anyone running a Roman-era RPG.)