What does the Northern Ireland Highway Code say about merging in turn at roadworks?

The Northern Ireland Highway Code supports cooperative merging rather than drivers using one lane to prevent others joining.

In Northern Ireland, the legal rule and the practical safety advice need to be read together. At congested lane reductions, using available road space and then merging in turn can reduce an unnecessarily long queue, provided drivers do so at low speed and without forcing a gap. It is different from undertaking aggressively or jumping a moving queue.

For this exact issue — “What does the Northern Ireland Highway Code say about merging in turn at roadworks?” — check the live temporary signs first, then confirm the works entry on TrafficWatchNI if you need dates, diversion details or the organisation responsible. Temporary traffic management can alter the normal lane layout, speed limit, access or priority, so an old sat-nav route or memory of the road is not reliable evidence of what is permitted today.

Watch the temporary signs because a specific works layout may tell drivers to merge earlier. Signal clearly and allow one vehicle at a time where practical. The safest way to apply this is to focus on the exact vehicle, road layout and current signage rather than relying on what normally happens at that location.

Before publishing this answer, the key factual point in “What does the Northern Ireland Highway Code say about merging in turn at roadworks?” was checked against current Northern Ireland official guidance. That matters because road rules, licence entitlements and enforcement details can differ from Great Britain and can change over time; the sources attached below are the ones to re-check if the rule is updated.