ahead
alert
arrow
attention
background
black
car
caution
color
concept
crossing
danger
design
direction
driving
hazard
highway
icon
illustration
information
isolated
limit
metal
nobody
object
pedestrian
red
road
roadsign
safety
set
sign
signal
slow
speed
stop
street
symbol
traffic
transport
transportation
travel
triangle
turn
warning
way
white
yellow
yield