Scheduled for Nov 9, 2026, 3:00:00 AM UTC

First published Nov 4, 2026, 12:40:15 AM UTC · Last updated Nov 4, 2026, 12:40:15 AM UTC

roadwork on HWY 400 (Northbound)

Nightly construction on northbound Highway 400 in Vaughan affects three alternating lanes and closes several ramps. The source reports Ontario as the administrative area and provides coordinates.

At a glance

Affected location: Vaughan

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Why it matters

Drivers using the affected highway ramps and lanes may need to account for the reported closures.

Location

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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: 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).
Urgency: 4/10How 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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Related developments reported in the last 30 days. These are not necessarily ongoing incidents.

Nearby · within 200 km
roadwork on HWY 401 (Eastbound)Nov 3, 2026, 4:30 AM UTC
3 reports describing the same event are grouped here. Expand the group to review every source report.
Nearby · within 200 km
roadwork on HWY 412 (Northbound)Nov 3, 2026, 4:00 AM UTC
The source reports nightly maintenance and a full closure of all lanes on the HWY 412 northbound off-ramp at HWY 407 in Whitby, Ontario. The listed reporting organization is MTO.
Nearby · within 200 km
roadwork on HWY 5 (Eastbound)Nov 2, 2026, 2:00 PM UTC
Daily construction is reported on eastbound HWY 5 between Spencer Creek and Flamboro Downs Road in Hamilton, with all lanes closed.
Nearby · within 200 km
roadwork on HWY 400 (Southbound)Nov 2, 2026, 2:00 AM UTC
Nightly construction is reported on southbound HWY 400 in Vaughan, with three alternating lanes affected and several ramps closed. The source lists severity as unknown.
Nearby · within 200 km
accidentsAndIncidents on HWY 6 (Southbound)Oct 30, 2026, 10:08 PM UTC
2 reports describing the same event are grouped here. Expand the group to review every source report.
Nearby · within 200 km
accidentsAndIncidents on HWY 124 (Both Directions)Oct 30, 2026, 7:40 PM UTC
A collision on HWY 124 at Bell Lake Road in McDougall Township, Ontario, closed all lanes in both directions. Severity was reported as unknown.

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