The city of Groningen had a great idea in the 70s. They wanted less car traffic in the inner city. So now there is a ring road around it, and the center itself

The city of Groningen had a great idea in the 70s. They wanted less car traffic in the inner city. So now there is a ring road around it, and the center itself is divided into four parts, with one-way streets laid out so that if you want to go from one part to another, you have to go to the ring road. Cars can't travel through the center, they have to go around it. In the center you only get cars that have that as their destination. But, all these one-way streets are marked "except for bicycles". None of the above applies to bicycles. So for even quite long trips, say from the north of the city to the south, bicycles beat cars because they can just go straight through the center and cars have to take the long way around.