But 20kph is absolutely doable for even several kilometers. A speed difference of 10kph ain't that problematic. The idea shouldn't be to create the perfect bicy

But 20kph is absolutely doable for even several kilometers. A speed difference of 10kph ain't that problematic. The idea shouldn't be to create the perfect bicycle town, but to reconcile different modes of transportation. A cyclist that doesn't want to travel at 20-30kph can, IMO, share a space with pedestrians at a speed of about 10kph or less.