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German Road Signs and Traffic Sign Meanings

Sign 138-20: Warning of Cycle Traffic Approaching from the Left

138-20 - Cycle traffic - installed on the left German road sign meaning

This German warning sign, officially 'Radverkehr - Aufstellung links' (Cycle Traffic - Installed on the Left), alerts you to the potential presence of cyclists. As part of the danger warning signs group, it signals that vulnerable road users might appear unexpectedly. You must recognize this situation early, reduce your speed, and be prepared to adjust your driving behavior accordingly. Always combine its warning with actual road markings, supplementary signs, or other traffic controls.

Understanding Sign 138-20: Cycle Traffic on the Left

This danger warning sign specifically indicates cycle traffic installed on the left side, requiring drivers to anticipate potential conflicts and adjust their approach. Mastering road sign meaning and traffic sign explanation is crucial for your German driving theory test revision and safe driving.

Definition of 138-20

German road sign 138-20, officially designated "Radverkehr - Aufstellung links", belongs to the danger warning signs group. It warns that vulnerable road users, animals, or crossing movements may appear suddenly, so recognition and early speed reduction are essential. You may see it in approaches to hazards, rural roads, urban conflict points, railway crossings, roadworks, and weather-sensitive sections, depending on how the road authority has arranged the location. This left-side version is used where the sign is placed on the left side of the carriageway or where a mirrored symbol fits the approach direction. Any left reference should be read as part of the direction, road side, lane arrangement, or placement shown by the sign. The practical meaning is not just the symbol itself, but the driving decision it triggers: adjust speed, position, priority, route choice, stopping behaviour, or attention before the situation becomes urgent. For learners, the key skill is anticipating what could go wrong before the hazard is visible. Always combine the sign with road markings, traffic lights, police instructions, and any supplementary plates at the same location.

Meaning of 138-20

German road sign 138-20 means "Cycle traffic - installed on the left" and is officially listed as "Radverkehr - Aufstellung links". In practice, it tells drivers to recognise the situation early, adapt before reaching the controlled area, and check whether markings or supplementary plates change how the rule applies.

Allowed actions for 138-20

Reduce speed early enough to keep full control before reaching the hazard.Scan both sides of the road, mirrors, lanes, shoulders, and crossing areas for the risk shown by the sign.Increase following distance and be ready to brake smoothly if another road user reacts suddenly.Choose a lane position that leaves safe clearance from the warned danger while staying within your lane and markings.Continue only when your speed and observation match the hazard, road surface, and available sight distance.

Prohibited actions for 138-20

Do not treat the warning as optional or wait until the hazard is directly in front of you.Do not overtake, accelerate, or follow closely when the sign points to reduced visibility, unstable road surface, crossing traffic, or vulnerable road users.Do not assume the danger is limited to the exact sign location; it may begin shortly after the sign and continue through the affected section.Do not ignore weather, darkness, traffic density, or roadworks conditions that can make the warned hazard more serious.

138-20 - Cycle traffic - installed on the left road sign FAQ

Get clear, practical answers to the most common questions about the 138-20 - Cycle traffic - installed on the left road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the German driving theory exam in Germany.

What does German road sign 138-20, 'Cycle Traffic - Installed on the Left', signify?

Sign 138-20 warns you that there is a situation ahead where cycle traffic might be present, specifically on the left side relative to your direction of travel. It's a danger warning sign, meaning you should anticipate potential hazards from cyclists and be ready to react.

What action should I take when I see sign 138-20?

Upon seeing sign 138-20, you should immediately reduce your speed to ensure you have full control. Scan the road ahead, especially the left side and any designated cycle paths or markings, for approaching cyclists. Be prepared to yield or take evasive action if necessary.

Why is the 'Aufstellung links' (Installed on the Left) important for sign 138-20?

The 'Installed on the Left' part specifies that the sign is placed on the left side of the road, or the symbol indicates cycle traffic from the left. This placement detail helps you interpret the potential hazard's direction and be extra vigilant for cyclists approaching from that specific side.

Are there common exam traps related to sign 138-20?

A common trap is not anticipating the hazard early enough. Learners might wait until they see a cyclist before slowing down. Remember, this is a warning sign; you must reduce speed and increase observation *before* reaching the potential conflict point, not after.

Does sign 138-20 mean I must always stop for cyclists?

Sign 138-20 is a warning, not an absolute prohibition. It means you must be aware of and prepared for cyclists. You must yield if they have priority or if your continued movement would endanger them. Always assess the specific situation, including road markings and priority rules.

138-20 - Cycle traffic - installed on the left road sign image

A clear reference image of the 138-20 - Cycle traffic - installed on the left road sign used in Germany.

138-20 - Cycle traffic - installed on the left road sign

Other names for the 138-20 - Cycle traffic - installed on the left

The 138-20 - Cycle traffic - installed on the left road sign may also be known by these alternative names or terms.

German road sign 138-20German traffic sign 138-20StVO sign 138-20Cycle traffic - installed on the left signRadverkehr - Aufstellung linksdanger warning signs 138-20

German Danger Warning Signs road sign category

The 138-20 - Cycle traffic - installed on the left road sign is part of the German Danger Warning Signs category, which groups together signs with similar rules and functions.

Reinforce Your Understanding of Similar Road Signs

Mastering German road signs requires distinguishing subtle differences. Comparing related signs, like different versions of 'Cycle traffic', sharpens your recognition skills and helps prevent common theory test errors. Use this comparison to solidify your understanding of German traffic rules and improve your exam preparation.

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