I think it's the certain style and design liberties subway style maps use. For c...

ydnaclementine on July 9, 2020 | parent | context | favorite | on: Subway-style maps of roads of the Roman Empire

I think it's the certain style and design liberties subway style maps use. For comparison, look at the general sizing or shape of Central Park in NYC subway maps [0].

[0] https://new.mta.info/map/5256