Here are some photos of a trip organised to Oxford, to see if there are any lessons in cycle friendliness that Bristol could learn from this city, which is famous for its bicycles.
First, the signs. Here is a 'no bicycles' sign at the entrance to a shopping area.
And a 'Do not park bicycles'. No please, just a Do Not.
And bets of all, Christ Church having a big "No bicycles either wheeled or ridden" sign.
It would be good to experiment with unicyles and tricycles to see how broad the ban was, or whether carrying was ok. But notice how the signs say nothing about Mini-Motos. Which is surprising, as the city seems ideal for them.