At the location of the new 5th runway the subsoil conditions in general vary but an average
CBR-value of 3% has been adopted. Several pavement types, such as asphalt concrete (AC),
unreinforced concrete slabs (PCC) and continuously reinforced concrete pavements (CRCP) have
been considered. However, due to the presence of the soft compressible clay layers an AC
pavement structure was given preference, especially regarding the ease and speed of future
maintenance activities.