Emergency corridors keep a lane open for ambulances, fire services and police when traffic is congested or stopped. Norwegian regulations require drivers to form a corridor on multi-lane roads whenever traffic halts. Anticipate the need, communicate clearly and position your car so responders pass safely.
Need the basics of traffic queues? Read Merging and queue driving. For signalling and interaction tips, see Co-operation in traffic.
When to create a corridor
| Situation | Action | Key detail |
|---|---|---|
| Two lanes in the same direction | Left lane moves left, right lane moves right | Keep the middle gap open; do not block ramps |
| Three or more lanes | Innermost lane moves left, all others go right | Large vehicles only use the shoulder if no other option |
| Narrow city streets | Hug the kerb without blocking pavements | Leave height clearance for ladder trucks |
| Approaching a junction | Stop before the stop line and keep the box clear | Use indicators to show intention |
How to do it
- Spot responders early: check mirrors every few seconds and listen for sirens.
- Alert others: tap brakes or use hazard lights when you are first in queue.
- Position within your lane: left lane to the left edge; others to the right edge.
- Keep wheels straight so the corridor remains predictable.
- Leave extra gap if you drive a long or heavy vehicle.
- Stop completely until the last emergency vehicle has passed.
- Merge smoothly back into normal position once traffic restarts.
More on safe emergency stops: Hazard lights and warning triangle.
Frequent mistakes
| Mistake | Outcome | Fix |
|---|---|---|
| Following the car ahead into the corridor | Blocks the route | Stay tucked to the side even if the gap looks empty |
| Stopping in the middle of the lane | Corridor too narrow | Move decisively to the edge and leave space |
| Filling exit ramps | Prevents alternative routes | Keep ramps clear; hold position in your lane |
| Loud music or phone distraction | Late reaction | Reduce distractions; see Traffic distractions |
Preparation checklist
- Maintain a safety gap you can sacrifice when moving aside.
- Keep mirrors clean and properly adjusted; review Five-see routine.
- Avoid loads or racks that block the corridor, such as wide bike racks.
- Agree with passengers who watches the rear in long queues.
When the queue stops
- Watch mirrors and listen for sirens.
- Shift left or right within your lane according to signage.
- Halt calmly, wheels straight, corridor clear.
- Let all emergency vehicles pass before moving.
- Merge cautiously and restore normal spacing.