accident
asphalt
attention
avenue
background
barrier
bitumen
boundary
bright
car
careful
caution
color
concrete
cone
cones
construction
danger
divert
driving
highway
horizontal
industrial
line
marker
nobody
object
orange
pavement
plastic
red
restriction
road
roadway
row
safety
security
sign
site
space
stop
street
striped
symbol
traffic
transportation
triangle
warning
white
work