The numbers don't make sense to me. The NYC subway costs $2.25. Is this figure weighted to account for reduced fare users?
Similarly, the Muni in San Francisco is $2. BART is commuter rail, despite its name, so I don't think its fares should be counted as "subway" even though some of it is underground.
Finally, Tokyo has a zoned system, ranging from 130 yen for short JR trips to more than 1000 yen for Tokyo<->Chiba trips.
And none of this includes monthly passes, 10 ride discounts, or the MTA's 7% "bonus".
Similarly, the Muni in San Francisco is $2. BART is commuter rail, despite its name, so I don't think its fares should be counted as "subway" even though some of it is underground.
Finally, Tokyo has a zoned system, ranging from 130 yen for short JR trips to more than 1000 yen for Tokyo<->Chiba trips.
And none of this includes monthly passes, 10 ride discounts, or the MTA's 7% "bonus".