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Check the road authority’s latest closure notice before setting out, then follow any signed diversion and allow extra time. If the diversion or conditions make travel unsafe or impractical, wait somewhere safe and check for an updated notice before continuing. Closure instructions vary by country and road, so use the authority responsible for your route rather than relying on a satnav alone.
Check whether the closure is still in effect
Roadworks and overnight closures can change at short notice. Check the responsible road authority’s live traffic updates and planned-roadworks information before departure, and check again if your plans change or you are delayed. A closure page for a particular road is an example of route-specific guidance, not confirmation that the road is closed now.
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- England: GOV.UK points drivers to National Highways live traffic information and its roadworks database. Get traffic information to plan your journey.
- Scotland and Wales: GOV.UK identifies Traffic Scotland and Traffic Wales for traffic information on major roads.
- Elsewhere: Check the road authority or emergency-management service responsible for the route. Service names, closure procedures and instructions differ by jurisdiction.
For instance, National Highways’ A417 Missing Link project page publishes closure notices, maps and diversion advice, while warning that details may change at short notice. Its dated schedules are not current travel advice for other journeys.
Use the signed diversion, not an improvised shortcut
If officials provide a diversion, follow its signs. A navigation app may suggest a shorter route that is not suitable for the traffic or may interfere with access for emergency services. National Highways’ guidance for the A417 closures says, “Please follow the official diversion routes rather than sat-navs.”
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On the A3 at Hindhead, official advice explains that a diversion may initially double back because routes are planned for traffic levels and emergency-service access; nearby local roads may not be suitable. The details are route-specific, but the practical lesson is general: do not bypass a closure or force your own way onto local roads. See A3 Hindhead tunnel: advice for drivers.
Allow for delay and decide whether to continue
A roadworks sign can warn of likely delays so drivers can allow more time or make other arrangements; it does not provide a dependable estimate of how long your particular journey will take. GOV.UK explains this in its guidance on signs for road works and temporary situations.
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Compare the official diversion and latest conditions with your remaining journey, available daylight, and whether you can reach a suitable place to stop. If severe weather is affecting the route, or the detour is no longer practical, consider postponing rather than trying to get around the closure. In a flood-related example on 7 July 2026, New Zealand’s Waka Kotahi advised travelers to consider waiting until the weather passed and crews could reassess the affected State Highway 1 route in daylight. That is an example for changing weather conditions, not a blanket rule for every overnight closure. Read its 7 July 2026 update.
If you stop, choose a safe, legal place away from the closed road and follow any instructions from officials. Recheck the authority’s updates before setting off again; do not assume a closure has ended just because the original time has passed.
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Plan breaks if the delay could become a long stop
For a journey where disruption is foreseeable, identify suitable places to take a break or rest before you set out. GOV.UK’s advice for potential disruption on the M20 corridor in Kent specifically recommends planning breaks and overnight rest, and locating motorway services along the route. This is corridor-specific guidance, but it illustrates why a long delay should be planned around safe stopping places rather than handled by continuing when tired. See Kent traffic management on the M20 motorway to Dover and Eurotunnel.
Quick Recap
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