abstract
ahead
animal
attention
beware
careful
caution
clear
cloud
country
cross
danger
dangerous
deer
drive
environment
europe
icon
light
nature
outdoor
outdoors
outside
pictograph
protection
road
roadside
roadsign
run
safety
sign
silhouette
sky
street
sunny
symbol
traffic
trafficsign
tree
triangle
warn
warning
white
wild
wildlife