In Sarnia, the snow plow priority is: primary roads (major arteries), emergency & transit routes first<\/strong>, followed by residential side streets and sidewalks on designated routes. Plowing typically begins after significant snowfall or a \u201csignificant weather event\u201d<\/strong> is declared by the city. According to city notices, clearing of sidewalks on designated primary routes starts after 8 cm or more<\/strong> of snow accumulation. (City of Sarnia)<\/p>\n\n\n\nChart: Snow Removal Priorities & Trigger Levels<\/h3>\n\n\n\n
Priority Level<\/th> Street \/ Area Type<\/th> Trigger \/ Notes<\/th><\/tr><\/thead> 1<\/td> Main roads, highways in city, transit routes, emergency access<\/td> Always first after major snow \/ \u201csignificant weather event\u201d<\/td><\/tr> 2<\/td> Secondary roads, collector streets, bus routes<\/td> After primary roads are under control<\/td><\/tr> 3<\/td> Residential side streets<\/td> Once higher priority routes are clear<\/td><\/tr> 4<\/td> Designated sidewalks on primary routes<\/td> Sidewalk clearing starts after ~8 cm snow on those routes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n