abstract
background
barricade
beware
black
blocked
caution
closed
color
concept
danger
dead
design
detour
diamond
divert
end
entry
finish
highway
illustration
image
isolated
metal
no
orange
pattern
restricted
restriction
road
roadblock
safety
shape
sign
signage
signboard
square
stop
street
symbol
traffic
transportation
travel
warning
white
wrong
yellow
yield