base
brake
brown
car
cargo
carriage
delivery
detail
engineering
fishplate
freight
goods
gravel
head
heavy
industry
iron
leaf
lining
metal
nut
outdoor
pad
rail
railroad
railway
running
rust
sleeper
spring
springing
steel
stone
surface
technology
tie
track
trade
traffic
train
transit
transport
transportation
truck
vehicle
wagon
way
wheel