Lower limit reduces collision severity and improves reaction time in mixed traffic conditions.

This limit is set to protect pedestrians, cyclists, and local traffic safety.

Towing increases braking distance and reduces stability the law keeps the same limit as trucks without trailers.

Temporary or permanent lower limits override general limits for safety reasons such as construction or weather.

Wet, icy, or foggy conditions require reduced speed to maintain control and prevent skidding.

Engine braking prevents brake overheating and reduces risk of runaway trucks.

Lowering speed ensures enough reaction time when clearance is tight.

Protects vulnerable road users and complies with urban traffic rules.

Lowering speed before the curve prevents rollovers and loss of control, especially with high centre of gravity.

ADR regulations sometimes require slower speeds for dangerous loads to reduce accident severity.

Ensures traffic stability and prevents risky manoeuvres.

Special safety rule to protect children in high pedestrian activity areas.

Protects workers and accommodates narrowed lanes or altered road layouts.

Prevents brake fade and loss of vehicle control.

Reduces risk of mechanical failure causing accidents.

Potholes, cracks, or uneven pavement can destabilise a heavy truck at high speeds.

EU law requires speed limiters on trucks to be set to prevent exceeding 90 km/h.

Ensures ability to yield or stop for cross traffic without skidding or jackknifing.

Helps avoid sudden braking and rear-end collisions in slow-moving traffic.