access
alert
allowed
anti
background
ban
brick
caution
danger
do
enter
entrance
entry
exclusion
forbidden
highway
icon
illegal
keep
label
law
no
not
outlawed
overtaking
pass
permit
prohibited
prohibition
regulation
restrict
restricted
restrictive
risk
road
rule
safety
security
sign
stencil
sticker
stop
street
symbol
traffic
transportation
trespassing
walking
wrong
zone