ahead
arrow
beware
black
blue
car
caution
color
curve
curvy
danger
day
direction
drive
green
highway
illustration
label
landscape
left
nobody
object
outdoors
post
right
road
roadside
roadsign
route
sign
signage
sky
slippery
street
symbol
traffic
transport
transportation
travel
trip
turn
view
warning
way
yellow