accident
alert
asphalt
attention
background
barrier
boundary
car
caution
concrete
cone
cones
construction
control
danger
detour
divert
equipment
fast
forbidden
hazard
highway
icon
illustration
limit
mark
marker
object
obstacle
orange
parking
plastic
protection
red
repair
road
safe
safety
security
sign
signal
stop
street
striped
symbol
traffic
transportation
warning
white
work