Why it matters: Under-signs: explanation, restriction, exemption and distance

Whoever reads 'uitgezonderd' as a restriction instead of an exemption wrongly drives onto a prohibited road — or wrongly stops where it's actually allowed. Whoever ignores a time window risks a fine outside the sign's hours, or wrongly parks within the prohibited hours. And whoever remembers '600 metres' as the book figure fails an exam question that literally tests the book's number.