> Paris is 140 miles That's only the subway; a better comparison would include at least parts of the RER network, which covers 360 miles; let's say half of tha

> Paris is 140 miles That's only the subway; a better comparison would include at least parts of the RER network, which covers 360 miles; let's say half of that in a range comparable to London subway. And London is much more spread out than Paris, so comparing mileage is not a very interesting metric. Subway station density is another one where London “loses”. Personally, I found London subway OK, with stations a bit too far away for my taste. The bus network however is better than in Paris, especially their frequency of passage.