Table 4 Section size of concrete surface...

Table 4

Section size of concrete surface layer of subgrade bed for ballastless tracks in Japan

Surface structural layer of subgrade bed	Track category	Load-bearing width of surface layer of subgrade bed/m	Standard thickness/m
Concrete slab	Standard gauge	3.20	0.30
Graded crushed stone layer	Standard gauge		0.15

Surface structural layer of subgrade bed	Track category	Load-bearing width of surface layer of subgrade bed/m	Standard thickness/m
Concrete slab	Standard gauge	3.20	0.30
Graded crushed stone layer	Standard gauge		0.15

Source(s): Authors’ own work