The "Two-way traffic" sign (1.26) is an important advance hazard warning in Switzerland. It alerts you to upcoming situations where traffic may come from both directions, even on what appears to be a one-way road. This sign requires you to adjust your driving behaviour early, such as reducing speed and widening your observation, to safely navigate the hazard when you reach it. Understanding this sign is crucial for theory test success and safe road conduct.
This advance warning sign (1.26) is crucial for Swiss theory test revision, prompting drivers to adjust speed and observation for upcoming two-way traffic situations. Master road sign interpretation by understanding how this symbol prepares you for reduced visibility or potential oncoming hazards, ensuring safe driving practices on Swiss roads.
This warning sign is used as an early planning cue, not as a last-second prompt. On Swiss roads it appears before the relevant hazard so the driver can adjust speed, following distance, lane position, and observation before the situation becomes demanding. In theory training, the expected answer should connect the sign with a concrete behaviour change: anticipate the hazard, keep control, and avoid overtaking or sudden manoeuvres where the warning reduces the safety margin. Official catalogue code: 1.26.
The "Two-way traffic" sign is an advance hazard warning. It gives the driver time to lower speed if needed, widen observation, and prepare for the signed hazard before reaching the danger point. Catalogue code 1.26.
Get clear, practical answers to the most common questions about the 1.26 - Two-way traffic 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 Swiss driving theory exam in Switzerland.
The 1.26 "Two-way traffic" sign is an advance warning that traffic will soon be coming from the opposite direction, or that the road ahead is two-way. It's placed before the actual hazard to give you ample time to prepare.
When you see the 1.26 "Two-way traffic" sign, you should anticipate the upcoming situation. It's recommended to lower your speed, increase your following distance, and widen your observation range. Avoid overtaking or making sudden manoeuvres until you have a clear view of the road ahead and the traffic situation.
While the sign itself simply indicates two-way traffic, it often precedes hazards that might be related to road layout changes, junctions, or areas where visibility is reduced. Always consider the sign's placement and surrounding context, such as road markings or other signs, to understand the specific risk.
A common trap is treating this sign as purely informational and not actively changing your driving. Learners might forget to adjust their speed or observation. The key for the exam is to demonstrate that you understand this is an advance warning requiring a concrete change in behaviour to maintain safety.
No, the 1.26 "Two-way traffic" sign does not require you to stop. It's a warning to prepare for changing traffic conditions. You should adjust your speed and awareness to be ready to react safely, but continue driving unless other signs or traffic signals indicate otherwise.
A clear reference image of the 1.26 - Two-way traffic road sign used in Switzerland.

The 1.26 - Two-way traffic road sign may also be known by these alternative names or terms.
The 1.26 - Two-way traffic road sign is part of the Swiss Warning Signs category, which groups together signs with similar rules and functions.
Studying signs like "Two-way traffic" alongside visually similar or conceptually related signs sharpens your recall and reduces confusion. Effective traffic sign comparison is key for strong theory test revision and confident driving.

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This warning sign is used as an early planning cue, not as a last-second prompt. On Swiss roads it appears before the relevant hazard so the driver can adjust speed, following distance, lane position, and observation before the situation becomes demanding. In theory training, the expected answer should connect the sign with a concrete behaviour change: anticipate the hazard, keep control, and avoid overtaking or sudden manoeuvres where the warning reduces the safety margin. Official catalogue code: 1.15.
This warning sign is used as an early planning cue, not as a last-second prompt. On Swiss roads it appears before the relevant hazard so the driver can adjust speed, following distance, lane position, and observation before the situation becomes demanding. In theory training, the expected answer should connect the sign with a concrete behaviour change: anticipate the hazard, keep control, and avoid overtaking or sudden manoeuvres where the warning reduces the safety margin. Official catalogue code: 1.16.
After reviewing the full list of Swiss road signs, delve deeper into specific categories, practice recognition with quizzes, or explore detailed explanations for each sign. Continue your comprehensive preparation for the official theory driving test.
View All Swiss Road Signs