Traffic calming tools

  
I cannot remember in which post I mention these. Bornes escamotables in French.

Random picture from the Internet

 They are awesome traffic calming devices. In parts of Europe, neighbourhoods will put these all around their entry points. Only area residents would be equipped with special cards/laser devices that are scanned directly on the thing. They then disappear into the ground to allow those residents to proceeds.

Marché Jean-Talon

Others walk or bike.
How come they are not more widespread? A perfect area to implement them is the Old Montréal with its narrow Nouvelle France streets.

A closer look. These ones do not look magnetic. Still...

Keeps off unwanted traffic, and especially, prevents any rat running in residential streets!
These are a cyclist's best friends, even more than cycle lanes. This is how Bordeaux became a cycle friendly place (from the mess it used to be), along with other adjustments, of course.

If we have them in Jean Talon, we can perfectly have them all around Montréal!