The J37 road sign warns of significant wheel ruts in the road surface. These ruts can unexpectedly deflect your steering, especially in wet conditions or when aquaplaning is a risk. This sign is crucial for motorcyclists, who are particularly vulnerable, but also applies to car drivers. When you see this sign, it's essential to reduce your speed and maintain a firm grip on the steering wheel to counteract any self-steering effects.
This J37 General Danger sign signals specific road hazards from rutting, demanding careful driver response. Understanding this sign's meaning is crucial for effective theory test revision and safe navigation of Dutch roads.
This general danger sign, combined with a supplementary plate, warns of rutting or grooves in the carriageway caused by heavy traffic or wear. These ruts can collect water, increase the risk of aquaplaning, and pull wheels along their lines, especially for motorcycles or narrow-tyred vehicles. Drivers are expected to hold the steering wheel firmly, reduce speed, and choose a track that minimizes sudden guidance by the ruts.
This sign warns of dangerous wheel ruts or grooves in the road surface that may catch your tires. Ruts can pull the vehicle sideways, especially when the surface is wet, leading to tramlining, loss of control, or aquaplaning, so you must reduce speed and steer smoothly through the affected section.
Get clear, practical answers to the most common questions about the J37 - General Danger — Rutting 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 Dutch driving theory exam in the Netherlands.
The J37 sign is a general danger warning sign indicating the presence of wheel ruts in the road. These ruts can cause your steering to be deflected unexpectedly, making it harder to control your vehicle, particularly at higher speeds or in wet conditions where aquaplaning is more likely.
Upon encountering the J37 'Rutting' sign, your primary action should be to reduce your speed significantly. It's also important to hold the steering wheel firmly, as the ruts can try to pull your wheels in a specific direction. Avoid sudden steering movements or sharp braking within the rutted section.
Wheel ruts are dangerous because they can grab your tires and steer them unexpectedly, especially if you are driving through them at an angle. In wet weather, they can channel water and increase the risk of aquaplaning. For motorcycles, these ruts can lead to a loss of balance and control.
Yes, when you see the J37 sign and are driving on rutted surfaces, avoid high-speed lane changes across the ruts, as this can be unstable. Also, do not brake sharply while your wheels are deep within a rut, as this can further upset your vehicle's balance and potentially lead to a skid or loss of control.
While not explicitly prohibited by the J37 sign itself, it is highly advisable to avoid aggressive maneuvers like high-speed lane changes across the ruts. If you must change lanes, do so smoothly and at a reduced speed, aligning your wheels as gently as possible with the direction of the ruts or the intended lane.
A clear reference image of the J37 - General Danger — Rutting road sign used in the Netherlands.

The J37 - General Danger — Rutting road sign may also be known by these alternative names or terms.
The J37 - General Danger — Rutting road sign is part of the Warning Signs (J) category, which groups together signs with similar rules and functions.
Understanding the nuances between similar Dutch road signs is crucial for accurate theory test revision. Comparing signs like 'General Danger — Rutting' with other warning signs helps solidify your knowledge and prevent confusion, improving your overall sign recognition for the exam.

Prepare for Uneven Roads with the J1 Poor Road Surface Warning Sign

Understand the J10 Warning Sign for Level Crossings with Barriers

Prepare for ungated rail crossings with the J11 Level Crossing without Barriers sign.

J12 Single St. Andrew’s Cross: Warning of a Single Railway Track Ahead

Prepare for the J13 Double St. Andrew’s Cross indicating multiple railway tracks ahead.

Prepare for the J14 Tram Crossing sign – a warning of potential hazards ahead.

Prepare for Road Works: Understand the J16 Warning Sign
Improve your recognition of official Dutch traffic signs by exploring related theory modules and complex priority scenario studies. These linked resources bridge the gap between visual identification and applying traffic rules correctly for your CBR exam.
Choosing the right driving licence category in the Netherlands can be confusing. This guide breaks down the AM, A1, A2, A, and B licence categories, explaining the age, exam, and vehicle specifics for each. By understanding these fundamental differences, you'll be well-prepared for your CBR theory and practical tests and know exactly which vehicles you are legally permitted to operate.
This guide helps you choose between a Category B car license and a Category A motorcycle license in the Netherlands by examining key decision criteria such as daily commute needs, weather tolerance, and financial implications. By understanding these practical differences, you can make a more informed choice that suits your lifestyle and prepares you for the relevant Dutch theory and practical driving exams.
Master the rules for a quieter ride and a cleaner environment in the Netherlands.
Master modern driver aids for safer journeys and a confident Dutch theory exam.
A bus lane only sign is placed at the start and often along the length of a lane that prioritises scheduled buses, and sometimes trams or taxis. It separates public transport from general traffic, reducing delays caused by congestion. The sign may work together with different coloured road surfaces, lane arrows and additional plates that show times and permitted vehicles. Unauthorised vehicles using the lane can receive fines and cause dangerous conflicts.
At the beginning of a mandatory cycle path, the round blue sign shows a white bicycle symbol and signals a dedicated verplicht fietspad. Cyclists must ride on this path wherever it is passable and may not choose the parallel carriageway. Local rules for snorfiets users are often shown on supplementary plates, while bromfiets riders usually use a different facility. Cyclists should respect any shared use markings, side road priorities and crossings along the path.
After reviewing the full list of Dutch road signs, deepen your understanding by exploring signs organized by category or practicing with targeted questions. This systematic approach ensures you fully grasp every sign's meaning and application, preparing you thoroughly for your CBR driving theory exam.
View All Dutch Road Signs