[It appears traffic flow only includes motorists, not pedestrians. -Beth]

CTV Winnipeg: Crosswalk buttons deactivated

Pedestrians now have to wait for the traffic lights to change at regular intervals, rather than spurring the lights to change by pushing the buttons at many Winnipeg intersections. City officials hope the move will improve traffic flow. Jon Hendricks reports.
http://watch.ctv.ca/news/top-picks/pushing-buttons/#clip615049