access
allowed
automobile
blocked
blue
car
caution
closeup
clouds
danger
deny
do
driver
entrance
entry
forbidden
halt
highway
large
license
metal
not
octagon
octagonal
permission
prohibited
red
regulatory
restricted
road
roadside
rule
safety
security
sign
signage
signboard
sky
stop
street
sun
symbol
toned
traffic
transport
transportation
truck
warning
way
white