Logo
Dutch Road Signs and Traffic Sign Meanings

Be aware of construction traffic entering the road with the J37 danger sign.

J37 - General Danger — Exit Construction Dutch road sign meaning

The J37 'General Danger — Exit Construction' sign warns you that vehicles from a construction site may enter the road ahead. These vehicles can be slow-moving, have limited visibility, and may bring mud or debris onto the carriageway, reducing grip. Always be prepared for sudden appearances, temporary speed limits, or lane shifts, and pass this area with extreme caution.

About the J37 - General Danger — Exit Construction road sign

Learn the key details of the J37 - General Danger — Exit Construction 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 J37

Here the general danger sign is combined with a supplementary plate referring to construction traffic entering or leaving the road. Heavy site vehicles may appear slowly from side access points and can carry mud or debris onto the surface. The sign is often used near building sites, roadworks, or temporary depots. Drivers must anticipate slow manoeuvres, unusual vehicle paths, and temporary markings or instructions from traffic controllers.

Meaning of J37

This sign warns of construction traffic entering or leaving the carriageway, often at a temporary access point. Slow, heavy vehicles, mud, and debris can appear unexpectedly, so you must reduce speed, increase your distance, and be ready for sudden movements or instructions from road workers and temporary traffic control. Extra care is needed because movements of construction vehicles can be slow, wide, or unpredictable compared with normal traffic.

Allowed actions for J37

Reduce speed clearly before the construction access pointLeave extra space to heavy vehicles that may turn or join slowlyFollow temporary signs, cones, and lane markings guiding you past the siteComply with instructions from traffic controllers or road workers when presentBe prepared for mud or debris on the road surface and adjust grip expectations

Prohibited actions for J37

Overtaking directly at the construction access where vehicles may turnPassing construction vehicles with minimal lateral clearanceIgnoring temporary speed limits or lane closures near the siteDriving at a speed that prevents stopping if a site vehicle emerges suddenly

J37 - General Danger — Exit Construction road sign FAQ

Get clear, practical answers to the most common questions about the J37 - General Danger — Exit Construction 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 is the main purpose of the J37 road sign?

The J37 sign is a warning sign indicating that construction vehicles might exit a work site and enter the road. It alerts drivers to potential hazards like low-speed vehicles, reduced visibility, and slippery road surfaces due to mud or debris.

What specific dangers are associated with the J37 sign?

The primary dangers include construction vehicles exiting unexpectedly, possibly at low speeds and with impaired visibility. You should also be aware of reduced road grip from mud and debris near the construction exit. Following temporary speed limits and lane changes is crucial.

How should I behave when I see the J37 construction exit sign?

When you see the J37 sign, you must reduce your speed significantly. Be ready to stop or take evasive action. Give construction vehicles a wide berth if they are entering or exiting the road, and always follow instructions from any site marshals present.

Are there any actions prohibited when encountering the J37 sign?

Yes, you are prohibited from passing construction vehicles too closely, as they may suddenly move or block your path. It's also essential not to ignore any temporary signs or instructions related to the construction site, such as reduced speed limits or diversions.

What is the difference between the J37 sign and other danger signs?

While many danger signs warn of general hazards, the J37 specifically highlights the risk of construction vehicles entering or exiting the carriageway. This means you need to anticipate large, potentially unpredictable movements from site equipment, not just regular traffic.

J37 - General Danger — Exit Construction road sign image

A clear reference image of the J37 - General Danger — Exit Construction road sign used in the Netherlands.

J37 - General Danger — Exit Construction road sign

Other names for the J37 - General Danger — Exit Construction

The J37 - General Danger — Exit Construction road sign may also be known by these alternative names or terms.

Site access hazardWorks traffic

Warning Signs (J) road sign category

The J37 - General Danger — Exit Construction road sign is part of the Warning Signs (J) category, which groups together signs with similar rules and functions.

Dive into Dutch road sign knowledge

J21 Children Dutch road signJ34 Accident Dutch road signDutch Driving Theory B courseJ28 Livestock Dutch road signJ31 Crosswind Dutch road signJ16 Road Works Dutch road signJ38 Speed Bump Dutch road signJ23 Pedestrians Dutch road signJ14 Tram Crossing Dutch road signJ36 Sleet or Snow Dutch road signJ15 Movable Bridge Dutch road signJ32 Traffic Lights Dutch road signJ3 Bend to the Left Dutch road signJ25 Loose Chippings Dutch road signJ9 Roundabout Ahead Dutch road signJ1 Poor Road Surface Dutch road signJ2 Bend to the Right Dutch road signJ29 Oncoming Traffic Dutch road signJ7 Dangerous Descent Dutch road signJ20 Danger of Skidding Dutch road signJ26 Quay or River Bank Dutch road signJ22 Pedestrian Crossing Dutch road signJ30 Low-Flying Aircraft Dutch road signJ39 Retractable Bollard Dutch road signJ6 Steep Slope (Ascent) Dutch road signSpeed Signs (A) Dutch road sign categoryJ33 Possible Traffic Jam Dutch road signJ8 Dangerous Intersection Dutch road signWarning Signs (J) Dutch road sign categoryPriority Signs (B) Dutch road sign categoryJ27 Big Game / Wild Animals Dutch road signJ5 Double Bend — First Left Dutch road signJ37 General Danger — Rutting Dutch road signJ4 Double Bend — First Right Dutch road signJ12 Single St. Andrew’s Cross Dutch road signJ13 Double St. Andrew’s Cross Dutch road signJ24 Cyclists and Moped Riders Dutch road signInformation Signs (L) Dutch road sign categoryBuilt-Up Area Signs (H) Dutch road sign categoryJ10 Level Crossing with Barriers Dutch road signSupplementary Plates (OB) Dutch road sign categoryJ11 Level Crossing without Barriers Dutch road signJ19 Carriageway Narrows on the Left Dutch road signClosure & One-Way Signs (C) Dutch road sign categoryJ18 Carriageway Narrows on the Right Dutch road signJ17 Carriageway Narrows on Both Sides Dutch road signMandatory Direction Signs (D) Dutch road sign categoryJ37 General Danger — Exit Construction Dutch road signDirection & Route Guidance (K) Dutch road sign categoryParking and Stopping Signs (E) Dutch road sign categoryJ35 Reduced Visibility (Snow, Rain, Fog) Dutch road signOvertaking & Lane Directives (F) Dutch road sign categoryArea, Road & Path Designations (G) Dutch road sign categoryJ37 General Danger (Supplementary Plate Specifies Hazard) Dutch road sign