It was the same with Denmark. And especially Copenhagen. They went from a very car-centric society to a remarkably bike-centric one. Despite bad weather. All due to the Oil Crisis. Unlike other governments in the rest of EU, it seems that both the Dutch and the Danes understood a change was needed.
I've read urbanism brochures from the 1960s, when the Technical University was getting moved from central Copenhagen to a suburb (Lyngby), and it's remarkable how car-centric the design was. An old airport, where the runway was converted into a huge parking lot, and commuting by car was carefully considered to weight all decisions.