National roads have an 80 km/h limit for trucks due to mixed traffic and more frequent junctions.

Towing reduces stability, so limits are lower to prevent sway and allow safe control.

Urban truck speeds are limited to 50 km/h for pedestrian safety and reduced accident severity.

Wet roads increase stopping distances and risk of skidding, requiring extra caution for heavy vehicles.

Heavy trucks require slower cornering speeds to prevent rollover or load shift.

Irish law requires speed adjustment in poor visibility to avoid collisions.

Temporary limits protect workers and maintain safe traffic flow around construction areas.

Engine braking prevents brake overheating and helps maintain control on steep declines.

Lower speeds protect children and comply with special local traffic regulations.

Reducing speed allows you to stop safely if a train is approaching or signals change suddenly.

Trucks have large surface areas that can be destabilized by strong winds, especially when empty.

Entering too fast can cause load shift or tipping, so slow approach is essential for heavy vehicles.

Reduced speeds give drivers more reaction time and improve safety for crossing pedestrians.

Slowing before the curve ensures stability and avoids dangerous braking mid-turn.

Lower speeds reduce sway and prevent load shift, protecting both driver and cargo.

Speed must be controlled to ensure overtaking is completed safely within clear road distance.

Reduced speeds improve control and allow safe negotiation of confined spaces.

Adverse weather drastically increases stopping distances and reduces grip for heavy trucks.

Keeping extra space reduces collision risk and allows time to react to sudden braking by the vehicle ahead.