Road traffic law and traffic regulations for C1E combinations
What this domain tests
This domain checks that you apply Danish traffic law to a C1E lorry-and-trailer combination, not to a car. Questions focus on category limits, speed limits, dimensions, and the documents you must carry.
Category and weight limits
- C1 covers lorries from 3,500 kg to 7,500 kg permissible maximum mass.
- C1E covers a C1 lorry towing a trailer over 750 kg, up to a combined permissible mass of 12,000 kg.
- The trailer's permissible mass must not exceed the lorry's towing capacity or the plated train weight.
- A trailer over 750 kg requires the E category; C1 alone is not enough.
Speed limits
- Built-up area: 50 km/h.
- Outside built-up area: 70 km/h for a lorry with trailer.
- Motorway: 80 km/h for a lorry with trailer, not the 130 km/h car limit.
- Signed lower limits and roadworks override these general figures.
Dimensions and documents
Typical maxima are 2.55 m width, 4.0 m height, and 18.75 m for the combination; always check the registration. Carry your C1E licence, registration, insurance, and tachograph records. The trailer must be registered, display its own number plate, and have working lights and brakes.
Worked example
A C1E lorry has a plated mass of 7,200 kg and tows a 1,300 kg trailer. The driver enters a Danish motorway. What is the maximum speed? The combination is 8,500 kg, so the car limit of 130 km/h does not apply. Because it is a lorry with trailer, the motorway limit is 80 km/h. On a rural road outside a built-up area the limit would be 70 km/h. The correct answer is 80 km/h.
Traps that cost marks
- Assuming C1E ends at 7,500 kg; that is C1 alone.
- Quoting 80 km/h outside built-up areas when the lorry-with-trailer limit is 70 km/h.
- Forgetting that a trailer over 750 kg requires the E category.
- Ignoring a lower signed limit because you know the general rule.
- Confusing the car motorway limit of 130 km/h with the combination limit.