Semi-trailer truckFlanders
An introduction to the traffic rules and road signs of Flanders. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.
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86. Semi-trailer truck
A semi-trailer truck is a combination consisting of a road tractor and a semi-trailer used primarily for transporting goods. The semi-trailer is coupled to the tractor so that a significant part of its weight is supported by the tractor rather than entirely by its own wheels.
Semi-trailer trucks are commonly used for long-distance freight transport and may carry containers, refrigerated goods, liquids, bulk materials or other cargo. Special rules can apply concerning driving licences, maximum dimensions and masses, speed limits, lane use, overtaking, loading and driving and rest periods.
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What is a semi-trailer truck in Belgium?
A Belgian semi-trailer truck consists of a tractor and a semi-trailer coupled together. Belgian technical regulations refer to this combination as an articulated vehicle.
What is the maximum length of a normal Belgian semi-trailer combination?
A standard articulated tractor-semi-trailer combination may generally be up to 16.5 metres long when the applicable geometric requirements concerning the semi-trailer and coupling are satisfied.
Must heavy trucks keep extra distance outside built-up areas?
Yes. Outside built-up areas, vehicles and combinations exceeding 7.5 tonnes or longer than 7 metres must normally maintain at least 50 metres from another such vehicle travelling ahead.

Traffic rules
Flanders