A movable jersey wall in Vancouver protects simply and quickly.
Parked cars, door zones, plastic hit posts, potted plants, curbs, bioswales. What do all of these things have in common? They are all methods to protect bike lanes from moving cars. Some of these methods are quicker to implement than others. Plastic hit posts are perhaps the quickest to implement and would reduce, though not prevent cars from entering bike lanes. They are cheap, easy to replace, but provide the least amount of protection.
The Grays Ferry Triangles Pedestrian Plaza occupies an enviable list in the life of Philadelphia's public space. It is the first pedestrian plaza in Center City to permanently close an active street off from car use and repurpose it for pedestrians. It is also the first pedestrian plaza to utilize recently passed city-wide legislation for its legalization.