Belgium has a good network that is well built; its highway system is among the best lit in Europe.
Belgian roads are labeled by alphabet letters:

• A-roads connect major cities and international destinations
• B-roads are between smaller cities.
• R-roads are ring-roads that are around large cities,
• N-roads connect secondary cities and towns.

While driving in Belgium, any driver must to carry in his car:

• A first aid kit
• A fire extinguisher; it must be accessible from the driver's seat.
• A reflective vest; in the accident or breakdown, it must be put on before getting out of the car on any road.
• A warning triangle; in the accident or breakdown, it must be placed 30 meters behind the vehicle on roads, and 100 meters on motorways.

Any foreign driver must also carry the following documents while driving:

• Driver license and International driving permit if it is required
• Passport
• Insurance certificate
• Vehicle registration documents

The basic traffic rules in Belgium are:

• Traffic flaw on the right side of the road; overtaking is on the left side.
• The minimum age for driving is 18 years.
• Road signs are usually in the local language, and signs can change language suddenly when driving through Belgium.
• It is the "Priority from the right" rule: coming from the right cars always have priority, unless priority road signs have been posted.
• Pedestrians have priority at pedestrian crossings.
• Trams have priority when their passengers getting on or off.
• The third party vehicle insurance is mandatory.
• Valid driving permits from all European Union countries are accepted. Drivers from other countries should have valid International driving licenses and National driving permits. Drivers from non-European Union countries may drive with their International driver licenses for six months; they must also carry their National driving permit all the time while driving.
• While driving, drivers may only use cell phones with hand-free systems.
• Drivers and all passengers must wear seat-belts; a driver must ensure passengers wear their seat-belts.
• In tunnels, headlights must be used any time, even during the day.
• Drivers involved in an accident must stop and help injured people.
• Police phone number is 101.
• Babies up to 13 kg must travel in a car seat, facing backwards; children from 13 kg to 18 kg must travel in a car seat, facing forwards; children from 18 kg to 36 kg or less than 1.35 m must travel in an adapted car seat using the normal seat belt.
• Speed limits are: on motorways – 120 km/h (72 mph); on main roads – between 70 km/h (43 mph) and 90 km/h (55 mph); in built-up areas – generally 50 km/h (30 mph) and 30 km/h in school areas.
• The alcohol/blood limit is 0.5 grams of alcohol per liter of blood. If it is found that a driver has more alcohol, he will be fined. In some cases, a driver permit may (for example, if a driver holds a driver licenses less than two years) be confiscated immediately.
• Driving under the influence of drugs is prohibited.
• A yellow line on the curb means “no parking”.
• Parking within 15 meters of a bus, tram is prohibited. Parking near where tram or rail lines cross the road is prohibited too.
• A red triangle (Axe Rouge/Ax Rode) means that parking is not permitted at hours 07:00-09:30 and 16:00-18:00.
• Anybody who is staying in Belgium for more than one year must register their vehicle. A holder will not pay import tax if he has a proof that a car was bought at least six months previous to arrival in Belgium.
• Motorways are toll-free. The Liefenhoeks Tunnel does only require a toll.
• It is not allowed to devices that actively search for speed cameras or interfere with police equipment.
• In built-up areas, horn can be used only in cases of extreme danger.
• Using cruise control on motorways is illegal.
• Any standing vehicle must have its engine switched off, unless absolutely necessary.
• Vans and motor-homes weighing over 3.5 tones should never exceed 90 km/h; on roads with more than three lanes, they must not use the left-hand lane.
• For renting a car, a driver must be at least 21 years old and have held a driver license for at least one year.

Belgium Road Traffic Signs
 

 Driving Overseas - Short Information