Another downside to Montreal winters — the Azur métro doors are jamming

The Societé de transport de Montréal has embarked on a repair program to deal with what can only be described as a minuscule problem — pieces of gravel and other abrasives tracked in to métro stations by commuters, which wind up jamming subway doors.
The problem, which has plagued the métro system in previous winters as the city spreads abrasives on ice-covered streets and sidewalks, has now manifested itself with the STM’s new Azur trains. The gravel buil