[suddenlybananas]

I do wonder how many cyclists in Paris are really replacing cars versus replacing metro usage. Obviously, it's still good for people to cycle as well since the metro can be insanely crowded at times, but living in Paris, my impression is that the people who cycle are the kinds who would have been unlikely to own a car in any case.

[nchagnet]

That's a really good point, I hope at the very least it enables a "car -> public transport -> bikes" flow. So even if these people were taking the metro, all that extra metro space can accomodate car-owners who wish to switch.

[martinald]

It depends though. At least in London a lot of cycleways were made by removing bus lanes and replacing them with high quality segregated cycle lanes.

This has led to a big increase in %age terms of cyclists in London, but a fairly significant decline in bus passengers.

I think roughly 300m/yr cycle journeys were added, but bus has lost 500m pax/yr (mainly because of increased congestion making them less and less attractive). Note this isn't all down to bus lane removal, but it's a significant part of it.

[kergonath]

> I do wonder how many cyclists in Paris are really replacing cars versus replacing metro usage.

That’s not necessarily a problem, particularly for saturated lines like the 13.

[saltysalt]

Exactly.