Logo
Dutch Road Signs and Traffic Sign Meanings

Learn the Meaning of the C17 'Closed to Vehicles Longer Than...' Road Sign

C17 - Closed to Vehicles Longer Than… Dutch road sign meaning

This C17 sign, 'Closed to Vehicles Longer Than...', is a prohibition sign that restricts entry to vehicles or combinations exceeding a specific length indicated on the sign itself. It's often used to protect routes with tight curves or short loading bays, ensuring long vehicles don't get stuck or cause hazards. The length includes any load and trailer, so always check your vehicle's total dimensions before proceeding. Understanding this sign is crucial for safe navigation and passing your Dutch theory exam.

About the C17 - Closed to Vehicles Longer Than… road sign

Learn the key details of the C17 - Closed to Vehicles Longer Than… road sign, including its function, what it communicates to drivers, and how it applies in real traffic situations in the Netherlands. Use this overview to understand the sign clearly and recognise it confidently during the Dutch driving theory exam.

Definition of C17

The C17 sign is a white circle with a red border and a length value, indicating closed to vehicles or combinations whose total length, including load, exceeds that value. It is often found before narrow bridges, sharp hairpin bends, short ferry ramps, or compact city streets where long vehicles cannot safely manoeuvre or wait. Drivers of trucks, buses, and articulated combinations must know their exact length and plan an alternative route if they exceed the posted limit.

Meaning of C17

This sign means that vehicles or combinations longer than the length shown on the sign may not enter. The limit includes the full vehicle plus any trailer and load, so you must check your total length before continuing. The rule prevents long combinations from getting stuck on tight curves, blocking junctions, or causing danger in short storage bays, so over length vehicles must choose another suitable route.

Allowed actions for C17

Enter with a vehicle or combination that is within the stated maximum lengthMeasure vehicle and trailer length accurately before using the routeChoose an alternative road that accepts long combinations when you exceed the limitSplit loads or trailers at a suitable location if that makes the combination shorterCoordinate with dispatch to plan routes that respect local length limitsUse turning areas before the sign if you realise you are too long

Prohibited actions for C17

Driving into the restricted section with a combination longer than the posted lengthAttempting tight turns or hairpins where your vehicle will block opposing trafficStopping in short storage bays or on narrow bridges with an over length vehicleIgnoring escort or permit requirements that relate to vehicle lengthRelying on other drivers to reverse or move so that you can get out

C17 - Closed to Vehicles Longer Than… road sign FAQ

Get clear, practical answers to the most common questions about the C17 - Closed to Vehicles Longer Than… 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.

What does the C17 'Closed to Vehicles Longer Than...' sign mean?

The C17 sign means that vehicles or vehicle combinations that are longer than the length specified on the sign are not allowed to enter the road ahead. This length typically includes the vehicle, trailer, and any load it is carrying.

Why is the C17 sign used on Dutch roads?

This sign is primarily used to protect roads that are not suitable for long vehicles, such as those with sharp bends, narrow passages, or short turning areas. It prevents potential traffic jams, accidents, and damage to roads or vehicles.

What are common exam traps related to the C17 sign?

A common trap is forgetting to include the trailer and load when calculating the total length. Drivers might only consider the tractor unit. Always ensure you know your vehicle's total length, including its load, to correctly interpret the C17 sign and avoid an exam mistake.

If I see the C17 sign, can I still turn if my vehicle is shorter than the posted length?

Yes, if your vehicle's total length (including load and trailer) is shorter than the length indicated on the C17 sign, you are allowed to enter. However, be mindful of the turning radius required; sometimes even shorter vehicles can have difficulty navigating tight corners.

What should I do if my vehicle is longer than the stated length on the C17 sign?

If your vehicle exceeds the posted length, you must not enter that road. You should look for an alternative route that is suitable for your vehicle's dimensions. Sometimes, escort vehicles are required for specific over-length transport, but the C17 sign itself indicates a complete prohibition unless otherwise specified.

C17 - Closed to Vehicles Longer Than… road sign image

A clear reference image of the C17 - Closed to Vehicles Longer Than… road sign used in the Netherlands.

C17 - Closed to Vehicles Longer Than… road sign

Other names for the C17 - Closed to Vehicles Longer Than…

The C17 - Closed to Vehicles Longer Than… road sign may also be known by these alternative names or terms.

Length limitOver-length banMax length entry restrictionLong vehicle prohibited

Closure & One-Way Signs (C) road sign category

The C17 - Closed to Vehicles Longer Than… road sign is part of the Closure & One-Way Signs (C) category, which groups together signs with similar rules and functions.

Dive into Dutch road sign knowledge

Dutch Driving Theory B courseC7a Closed to Buses Dutch road signC7 Closed to Lorries Dutch road signC4 One-Way to the Right Dutch road signSpeed Signs (A) Dutch road sign categoryC11 Closed to Motorcycles Dutch road signC16 Closed to Pedestrians Dutch road signWarning Signs (J) Dutch road sign categoryC23-01 Rush-Hour Lane Open Dutch road signPriority Signs (B) Dutch road sign categoryC23-03 End of Rush-Hour Lane Dutch road signInformation Signs (L) Dutch road sign categoryC22b End of Environmental Zone Dutch road signC22d End of Zero-Emission Zone Dutch road signC23-02 Clear the Rush-Hour Lane Dutch road signC5 Two-Way Access (Not One-Way) Dutch road signC7b Closed to Lorries and Buses Dutch road signBuilt-Up Area Signs (H) Dutch road sign categoryC12 Closed to All Motor Vehicles Dutch road signSupplementary Plates (OB) Dutch road sign categoryC18 Closed to Vehicles Wider Than… Dutch road signC17 Closed to Vehicles Longer Than… Dutch road signC19 Closed to Vehicles Higher Than… Dutch road signClosure & One-Way Signs (C) Dutch road sign categoryC9 Closed to Various Non-car Traffic Dutch road signMandatory Direction Signs (D) Dutch road sign categoryC3 One-Way Street — Entry Allowed Here Dutch road signDirection & Route Guidance (K) Dutch road sign categoryParking and Stopping Signs (E) Dutch road sign categoryOvertaking & Lane Directives (F) Dutch road sign categoryC21 Closed to Vehicles Over Total Weight… Dutch road signC10 Closed to Motor Vehicles with Trailers Dutch road signArea, Road & Path Designations (G) Dutch road sign categoryC20 Closed to Vehicles with Axle Load Over… Dutch road signC8 Closed to Agricultural and Slow Vehicles Dutch road signC22a Environmental Zone — Diesel Restrictions Dutch road signC2 No Entry in This Direction (One-Way Street) Dutch road signC1 Closed to All Vehicles (Pedestrians Allowed) Dutch road signC22c Zero-Emission Zone — Commercial Cars & Lorries Dutch road signC6 Closed to Motor Vehicles on More Than Two Wheels Dutch road signC15 Closed to Bicycles, Mopeds & Disability Vehicles Dutch road signC22 Closed to Vehicles Carrying Hazardous Substances Dutch road signC14 Closed to Bicycles & Non-motorized Disability Vehicles Dutch road signC13 Closed to Mopeds/Snorfiets & Disability Vehicles (Engine On) Dutch road signC22c1 Zero-Emission Zone — Access for Emission-Free Commercial Vehicles Dutch road sign