Road traffic in the Grand Duchy

The road network in the Grand Duchy comprises 2,875km. It is made up of motorways ('A' roads) and regional roads ('N' and 'CR' roads). For road traffic to be able to operate smoothly, people using the highways need to observe a certain number of rules.

The Highway Code

The Highway Code is the basis for the regulations governing road traffic. For learner drivers, a simplified version of the Highway Code is published by Sécurité Routière a.s.b.l. in the form of a booklet entitled 'Code de la Route Populaire' (available from bookshops).

Street Code (pedestrians, cyclists, motorcyclists, drivers)

Pedestrians, cyclists, motorcyclists and drivers all use the roads, but do not always know enough about their rights and duties in respect of each other.

The Street Code was drawn up by the 'Sécurité Routière asbl'. Its purpose is to facilitate the cohabitation of road users and promote their mutual respect.

Speed limits

The general speed limits are:

  • 130kmh on motorways (110kmh in case of rain or other precipitation),
  • 50kmh in built-up areas,
  • and 90kmh outside such areas.

Lorries, buses and coaches may not exceed 75kmh on roads outside built-up areas, or 90kmh on motorways. The speeds are controlled either by mobile radar stations or through terminals installed at key locations.

Blood alcohol levels

  • In the Grand Duchy, the blood alcohol limit is 0.5‰. Young drivers may not exceed 0.2‰.

Other important rules

  • In the Grand Duchy, there is right-hand traffic on the roads.
  • It is not allowed to use a telephone without a hands-free system while driving.
  • Seat belts must be worn by all occupants of a vehicle. Children shorter than 1.5m must use a child's seat up to the age of 18 years, unless they weigh more than 36kg.
  • Pedestrians have priority when crossing the road on a pedestrian crossing and when indicating their intention to do so.
  • In the Grand Duchy as in all the member states of the European Union (EU), reflective clothing must be kept in the vehicle and worn in the event of an emergency stop or breakdown.
For more information overview of the main rules governing traffic on the website of the Department of Transport

Road and traffic conditions, delays

  • Information on road and traffic conditions may be obtained from the Luxembourg automobile club (Automobile Club Luxembourg, ACL).
  • Information is broadcast at regular intervals on the radio and on the Internet (for example at
  • Information on traffic on the motorways may be obtained from the CITA website of the national roads authority (Administration des Ponts et Chaussées).

Road markings in the Grand Duchy

Road signs always take precedence over general traffic rules.

All the road signs used are explained on the website of the National Roads Authority.

  • Updated 22-03-2018