First published 10/6/2026, 2:58:15 PM · Last updated 10/6/2026, 2:58:15 PM

roadwork on HWY 400 (Southbound)

Nightly construction is reported on southbound HWY 400 in Vaughan, with three alternating lanes and multiple ramps closed. The source lists Ontario, Canada, and coordinates 43.846935, -79.54861.

Illustrative image: Construction of Ontario Highway 407 overpass and highway exit at Harmony Road, in Durham Region. Facing southeast. — Kelapstick/Wikimedia Commons, CC BY-SA 4.0

Categories: travel-and-transportation

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 7/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 1/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 1/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 4/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 3/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

The reported lane and ramp closures affect access along this highway segment.

Location

Sources

roadwork on HWY 400 (Southbound)Contains information licensed under the Open Government Licence – Ontario (https://www.ontario.ca/page/open-government-licence-ontario). Source: Ontario 511. Information is provided “as is”; actual roadway conditions may differ. No endorsement by Ontario 511, MTO, or the Government of Ontario is implied. Usage terms

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