> They stop people from using vehicles to attack lots of people They don't just stop using vehicles as weapons. It's important they also stop vehicles which a

> They stop people from using vehicles to attack lots of people They don't just stop using vehicles as weapons. It's important they also stop vehicles which are out of control from colliding with pedestrians, or drivers who are having a stroke, or just messy accidents from spilling over into pedestrian areas. There was a nasty accident here in Ottawa in January where a double-decker city bus collided with an overhang at a bus station. Three people died and many more were injured. There was a great deal of focus in the media about improving the crash worthiness of buses for occupants on the upper deck, but a simple line of bollards at the front of the station would have saved lives by preventing the upper level of the bus from colliding with the station in the first place.