Group 1 – A15 – 1.5 tones/axle (15kN) – for areas with pedestrian traffic, alleys, courtyards or bicycle lines.
Group 2 – B125 – 12.5 tones/axle (125kN) – reduced traffic (parking with weight restrictions, markets, private roads, parking).
Group 3 – C250 – 25 tones/axle (250kN) – roads, roads for easy commercial vehicles, parking for vehicles up to 25 tones, drainage.
Group 4 – D400 – 40 tones/axle (400kN) – roads for heavy vehicles, highways, parking areas for all types of vehicles.
Class E600 – 60 tones/axle (600kN) – areas with heavy and very heavy traffic (ports, airports).
Class F900 – 90 tones/axle (900kN) – exceptional vehicles, ports, airports, etc.