Travel time to major cities (in hours and days) and shipping lane density
A map released by the European Commission and the World Bank models the accessibility (and isolation) of various parts of the world. It’s a heat map that shows the travel time to major cities (here defined as 50,000 or more people). The oceans show shipping lane density. Via MAPS-L.
It’s interesting to note that only 10% of the earth is more than 2 day trip from a large city