People driving on parts of Highway 417 and 416 may have noticed new speed limit signs on Friday.
As of Aug. 21, portions of highways in the nation’s capital are increasing speed limits by 10 km/h. The announcement was made in June by the province, which has increased limits on many 400-series highways in Ontario.
Limits on the 416 from 1.5 kilometres south of Fallowfield to County Road 12 will increase.
On Highway 417, the changes will be from the 416 split to Highway 7 through Ottawa’s west neighbourhoods; Ashton, Stittsville, Kanata and Bells Corners including Highway 7 to Appleton Side Road/County Road 17.
In the east end Highway 417 from Leitrim Road to Hwy. 174 will have a speed limit change.

The move builds on earlier expansions in 2022 and 2024, which followed a multi‑year pilot project showing select highways could safely accommodate higher speeds.
The government has repeatedly argued that the increases are “evidence‑based” and bring Ontario in line with other provinces such as Alberta, Saskatchewan, and Nova Scotia, where 110 km/h is standard.
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