Lane Division Ahead
The sign indicates lane division on the road section
When You See This Sign
When you see Lane allocation over a distance (F18) you should choose and remain in the lane that leads to your onward route in good time. Follow the arrows and road markings, signal when changing lanes and check the mirrors before you carry out the lane change. The allocation applies for the entire marked stretch until otherwise indicated.
Rules & Regulations
- The sign shows how the lanes are distributed along a stretch of road and indicates which directions apply to each lane.
- Follow the arrows' instructions and position yourself in the lane that leads to your intended direction in good time before or during the marked stretch.
- The instruction applies for the entire distance indicated by the sign until an end sign or a new sign changes the division.
- If there are supplementary road markings or variable lane signals, these should be followed in conjunction with the sign; do not ignore permanent instructions.
Tips for Drivers
- Read the arrows well in advance and choose your lane early so you do not need to make a hurried lane change near the end of the stretch.
- Change lanes with a clear indicator and check mirrors and the blind spot before leaving your lane within the indicated stretch.
- Watch for an end sign or a new sign showing when the lane layout ends, especially on longer stretches.
- In heavy traffic or on motorways: be extra attentive to vehicles that need to change lanes to reach their exit and give space if possible.
Common Mistakes
- Believing that the lane division only applies exactly at the sign instead of for the entire indicated stretch.
- Misunderstanding the meaning of the arrows and ending up in the wrong lane for your exit or continued route.
- Waiting too long to change lanes and being forced to make risky or late maneuvers to get into the correct lane.
Test Yourself
Road Sign: Lane Division Ahead
What is expected of you as a driver here?
- A You must follow the specified lane arrangement for the marked section of road.
- B The signs only indicate the presence of a turnout parking area further ahead.
- C It means overtaking is prohibited on the stretch.
- D It is a warning sign for a speed bump on the road.
Exam Tip
On the theory test you may be asked whether the instruction applies only at the sign or for the entire stretch — the correct answer: it applies for the entire marked stretch until an end sign or a new sign changes the division. You may also be asked about lane changing within the stretch; answer that lane changing is allowed if there are no prohibitions or solid markings forbidding it and if it is done safely.
Did You Know?
F18 is often used before complex exit areas, tunnels, or bridges to reduce last-minute lane changes and improve traffic flow. The sign always illustrates the distribution over a stretch, which distinguishes it from signs that only show a point-specific instruction.
Frequently Asked Questions
Does the sign apply only where it is placed or to the entire stretch?
The sign applies to the stretch it refers to, not just the point where it is placed. The division applies until an end sign or a new sign shows a different distribution.
May I change lanes within the marked stretch?
Yes, you may generally change lanes within the stretch if no other prohibition exists, but it must be done safely with correct signaling and checks of mirrors and the blind spot. If road markings or other signs prohibit lane changes, you must follow those.
What should I do if I miss the correct lane before the stretch begins?
Continue calmly and look for a safe opportunity to change lanes further ahead or take the next exit if that is the safest option. Do not make sudden or dangerous lane changes to get back at the last moment.
Can the sign be combined with variable lane signals or arrows on the road surface?
Yes, F18 often appears together with road markings and variable signals above lanes. In such cases you should follow the current signaling and the latest instructions that apply to each lane.
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