The (Ongoing) Detour sign (4.34.1) is a crucial route guidance sign in Switzerland, indicating that you need to follow a detour or an adjusted route ahead. It's part of the official Swiss route guidance system and is designed to be read well in advance of decision points. Proper interpretation helps you safely choose the correct lane, destination, or detour without sudden braking or steering, ensuring a smoother and safer journey. Always read these signs early to confirm they match your intended route and vehicle category.
This sign indicates an ongoing detour ahead, crucial for planning your route and lane selection in Switzerland. Mastering its meaning is vital for safe navigation and passing your theory test.
This direction sign is part of Swiss route guidance. It is meant to be read before the decision point so drivers can select a lane, exit, route number, destination, detour, or road category without sudden steering or braking. The safe response is to plan the manoeuvre calmly, confirm that the lane and vehicle category match the sign, and avoid crossing lanes late. Official catalogue code: 4.34.1.
The "(Ongoing) detour (for all destinations)" sign guides drivers toward detour or explains the route arrangement ahead. Use it to choose the correct lane, destination, route number, or detour in good time. Catalogue code 4.34.1.
Get clear, practical answers to the most common questions about the 4.34.1 - (Ongoing) detour (for all destinations) 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 primary purpose of the 4.34.1 (Ongoing) Detour sign is to guide drivers onto an alternative route or a rearranged traffic flow. It helps you make timely decisions about which lane to use, which exit to take, or which route number to follow to bypass a specific area or obstruction.
When you see the 4.34.1 Detour sign, your safe response is to plan your manoeuvre calmly. Read the information early to choose the correct lane, destination, or detour that matches your planned route and vehicle category. Avoid last-minute lane changes or abrupt braking.
Even if you are familiar with the area, you should always pay attention to the 4.34.1 Detour sign. Road layouts and traffic arrangements can change unexpectedly due to construction or events. Ignoring it could lead you into a closed area or a situation that conflicts with the planned traffic flow, potentially causing hazards or delays.
A common mistake with detour signs like 4.34.1 is missing the information and then attempting to cross lanes abruptly after the decision point. Another error is following an arrow or destination displayed on the sign that doesn't actually align with your intended route or lane, leading to confusion or incorrect path selection.
You should always interpret the 4.34.1 Detour sign in conjunction with its placement on the road, surrounding lane markings, traffic lights, and any supplementary panels that might be present. These elements provide crucial context that can alter how the sign affects your driving decisions.
A clear reference image of the 4.34.1 - (Ongoing) detour (for all destinations) road sign used in Switzerland.

The 4.34.1 - (Ongoing) detour (for all destinations) road sign may also be known by these alternative names or terms.
The 4.34.1 - (Ongoing) detour (for all destinations) road sign is part of the Swiss Direction Signs category, which groups together signs with similar rules and functions.
Reviewing related detour signs helps sharpen your recognition and reduce confusion during your theory test revision. Comparing similar traffic signs ensures you grasp the nuances for accurate hazard perception and confident driving.

Prepare for Town Entry with the 4.27 Direction Sign

Prepare to exit town limits with the 'End of town/village on main road' sign (4.28).

Entry of Town/Village on Minor Road Sign (4.29): Navigate Your Route Ahead

Sign 4.30: Navigating the End of a Town or Village on a Minor Road

Navigating with the Expressway Route Signpost (4.31)

Prepare to choose your lane with the Signpost to Destination via Main Route (4.32).

Navigate your route with the Signpost to destination via minor route sign (4.33).

Follow This Sign: Detour to Your Destination Ahead
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