In Toronto where I live, the City recently installed anti-car barriers at the entrances of Toronto's Kensington Market for Pedestrian Sundays, spending $179,000 for seven barriers that look like they might have been designed by America's Homeland Security to stop a truck. They are connected to a permanent planter, pivot and pull out. According to Now Magazine,
The retractable steel gates were designed by Colin Burroughs, a recent graduate from OCAD U’s industrial design program. Each one contains a planter full of native grass, and features a laser-cut image of a neighbourhood scene.
In Reykjavik, they stick a bike on a pivot on a post, paying like $179 each. Nobody has driven through it yet.