What started back in 2009 with a city council resolution has come to a head with a petition to reduce the speed limit on Great Northern Road from Third Line to Fifth Line.
Great Northern Road between Third Line and the Fifth Line is part of the Trans-Canada Highway 17 and classified as a primary arterial.
The posted speed limit on this section of Great Northern changes from 60 to 80km/h at approximately half way between Third and Fourth Line.
The Canadian Guidelines for Establishing Posted Speed Limits (the Guideline), is published by the Transportation Association of Canada (TAC), and used as a tool by municipalities for evaluating posted speeds on arterial and major collector roadways. These guidelines assess appropriate posted speed limits based on the classification, function and physical characteristics of a roadway.
Applying the current physical characteristics of each segment to the Guideline and using a functional classification of a “four lane urban undivided major arterial” yields a total risk score of 48 and a recommended posted speed limit of 70 km/hfor the section from Third to Fourth Line. For the section from Fourth to Fifth Line using a functional classification of a “four lane rural undivided major arterial”
yields a total risk score of 53 and a recommended posted speed limit of 70 km/h.
The matter will be discussed at city council.