First published 10/4/2026, 11:46:15 PM · Last updated 10/5/2026, 12:38:30 AM

roadwork on HWY 400 (Northbound)

Nightly construction is reported on northbound HWY 400 between Bass Pro Mills Drive and Major Mackenzie Drive in Vaughan. Three alternating lanes and several listed on- and off-ramps are reported closed; severity is listed as unknown.

Illustrative image: What car is that Orange one? — Michael Gil from Calgary, AB, Canada/Wikimedia Commons, CC BY 2.0

Categories: travel-and-transportation

Generated scores

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

Confidence: 6/10How 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: 2/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 5/10How 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 report identifies lane and ramp closures on a northbound highway segment in Vaughan.

Location

Sources

roadwork on HWY 400 (Northbound)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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