ahead
background
ban
car
control
crossing
danger
direction
do
driving
empty
enter
entry
flat
forbid
forbidden
hand
hazard
highway
human
icon
label
lane
law
limit
no
not
octagonal
prohibited
prohibition
red
restriction
risk
road
roadsign
safety
security
sign
signal
single
sticker
stop
street
symbol
traffic
transportation
truck
walk
warning
way