The D104 road sign indicates that mopeds and speed-pedelecs must pass this point on the left. This sign is crucial for managing traffic flow and ensuring safety, particularly on shared paths or complex road layouts where right-side passage might be unsafe or impractical. Drivers should be aware of this sign to anticipate the movement of moped traffic and ensure they maintain a safe distance and respect the designated path.
This D104 sign specifically directs mopeds and speed-pedelecs to pass on the left, crucial for navigating Dutch traffic rules and ensuring safe lane changes. Proper recognition is vital for theory test revision and understanding specific road configurations.
D104 is a blue mandatory direction sign for mopeds and speed-pedelecs that indicates they must pass on the left side of the sign. The arrow prescribes the side on which the vehicle must overtake the obstruction or island along its route. You will often encounter it where special moped facilities run to the left of a refuge, or where designers need to separate moped flows from other traffic movements at a junction or crossing.
This sign requires moped riders and speed-pedelec users to pass to the left-hand side of the sign. It is used where the safe and legal route for these vehicles lies to the left of an obstacle, separation island, or kerb extension. Riders must move to the correct position in time, keep left of the panel, and follow the indicated track without cutting the corner.
Get clear, practical answers to the most common questions about the D104 - Mopeds Pass 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 Dutch driving theory exam in the Netherlands.
The D104 sign specifically instructs riders of mopeds and speed-pedelecs that they must pass on the left side of the sign. It's an informational sign guiding traffic, ensuring clear routes for these vehicles.
The primary action prohibited for mopeds and speed-pedelecs is passing on the right side of the D104 sign. Additionally, crossing into an opposite lane if it's not designated for them would also be implicitly prohibited to maintain safe passage.
You're likely to see the D104 sign in areas where the road or path design necessitates a specific direction for mopeds. This could be at junctions, along cycle paths shared with mopeds, or where a right turn would be hazardous or impossible for them.
As a car driver, the D104 sign alerts you to the presence of mopeds or speed-pedelecs that will be passing on the left. You should be extra vigilant, especially if you are turning or merging, and be prepared for these vehicles to approach from the left side of the sign. Maintain awareness of their designated route.
Yes, understanding the D104 sign is important for car drivers during the theory test. While it directly instructs mopeds, knowing what other road users are required to do helps you anticipate traffic behaviour, predict potential hazards, and drive more safely in mixed traffic conditions.
A clear reference image of the D104 - Mopeds Pass on the Left road sign used in the Netherlands.

The D104 - Mopeds Pass on the Left road sign may also be known by these alternative names or terms.
The D104 - Mopeds Pass on the Left road sign is part of the Mandatory Direction Signs (D) category, which groups together signs with similar rules and functions.
Studying related road signs like 'Mopeds Pass on the Left' alongside others helps solidify your understanding and improve sign recognition. Comparing similar traffic signs is a key revision technique for the Dutch theory test, ensuring you master every detail.

Understand the D1 Sign: Mandatory Counterclockwise Roundabout Traffic Flow

Cyclists and Snorfietsers Must Pass on the Right of this D101 Sign.

D102: Cyclists and Snorfietsers Must Pass on the Left

Mopeds Must Pass on the Right: Understanding the D103 Sign

Know the D2 'Pass on the Right' traffic sign for safe Dutch driving.

D3: Obstacles Ahead? You Can Pass on Either Side!

You must go straight ahead: the D4 mandatory direction sign explained.

Mandatory Direction Right: You MUST turn right here!
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.
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