[etiennemarcel]

> public transport systems are not even close to having enough capacity to replace private motor transport entirely, and there zero chance of them having it any time soon.

Paris is currently building more than 200km of subway (between now and 2030), a new suburban train line (RER E), 4 new tramway lines...

[Silhouette]

It's true that the French seem to be doing much better on this than we Brits are, but even so, the existing Paris metro is so over-subscribed much of the time that multiple new lines might still only be enough to make things more tolerable for the people who already travel that way. Getting everyone out of all those cars and onto public transport as well is an even harder problem, and it's an exceptionally difficult one to solve when you're working underneath big, established cities with a lot of history like London and Paris. In London we're only building one major new line at the moment, but some of the engineering they've had to do to make that line fit and to avoid disrupting daily life above and damaging important historical buildings during the tunnelling and construction work is remarkable.