What came first, the bikes, or the bike lanes?
Copenhagen and Amsterdam are frequently brought up as examples of the level of cycling a city can have when the city invests in cycling infrastructure. The counterargument is that both of those cities had very high cycling levels even before the facilities were created, and the bike lanes and sidepaths were created in response to the high level of cycling.
Mikael @ Copenhagenize posted a wonderful series of historic photos showing masses of cyclists from the 30s into the 70s. While there was heavy bike traffic even on streets without bike lanes, it’s clear Copenhagen had bike lanes and sidepaths even in the 1930s.
What do you think? Do bike facilities encourage people to bike? Or are they a response to increased demand after there are more bikes on the road?