In the U.K., the public transit agency turned to a marketing campaign built around a famous psychology experiment.
In the Netherlands, reports the NYT,
Dutch drivers are taught that when you are about to get out of the car, you reach for the door handle with your right hand — bringing your arm across your body to the door. This forces a driver to swivel shoulders and head, so that before opening the door you can see if there is a bike coming from behind. Likewise, every Dutch child has to pass a bicycle safety exam at school. The coexistence of different modes of travel is hard-wired into the culture.