architecture
attention
ban
beware
caution
city
crossing
danger
footpath
forbidden
gate
health
icon
information
law
no
no trespassing
passenger
pedestrian
penalty
people
platform
prevention
prohibited
prohibition
rail
railroad
railway
railway warning sign
red
restriction
risk
safety
sign
station
stop
symbol
tourist
track
traffic
train
transport
transportation
travel
uk
urban
warning
well
white