accident
ahead
alert
arrow
attention
background
banner
bend
beware
bypass
car
careful
carefully
caution
curvaceous
curve
curvy
danger
dangerous
difficult
drive
grove
guide
highway
icon
label
notice
plate
post
right
risk
road
rough
shrub
shrubbery
sign
signal
signboard
signpost
sky
slippery
speed
street
symbol
traffic
transport
transportation
turn
warning
white