accident
area
background
ban
barrier
black
caution
closed
concept
construction
cordon
crime
cross
danger
dark
emergency
entry
exit
forbidden
hazard
isolated
lines
no
not
obstacle
pandemic
passage
plastic
police
prohibition
red
ribbon
risk
safe
safety
scene
secure
security
sign
site
stickers
stop
stripe
symbol
tape
vertical
warning
white
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