Scheduled for Oct 19, 2026, 2:00:00 AM UTC

First published Oct 14, 2026, 2:33:15 PM UTC · Last updated Oct 14, 2026, 2:33:15 PM UTC

roadwork on HWY 400 (Northbound)

Nightly construction on northbound HWY 400 in Vaughan involves three alternating lanes and closures of the listed ramps. Severity is reported as unknown.

At a glance

Affected location: Vaughan

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Why it matters

The source lists closures affecting on-ramps and off-ramps.

Location

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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: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The 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).

Primary official sources

Ontario 511 Traffic Events 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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