Here you can officially sing as you cycle. No need for
un-natural pauses in you song as someone cycles past
It's a stunt by the Fietsersbond, the Dutch cycling union. It's not (yet) official policy that cycle paths are designed for singing. But it's also a sign of what cycling is in the Netherlands. Apart from those places where things have gone wrong, cycling is joyful here, just as it should be everywhere else.
Joyful cycling is something worth working towards in time for next Christmas. Aim high. For everyone to feel like singing when they cycle you need a very high degree of subjective safety. Remember who we're doing this for, and don't take too long about it.