ahead
alert
area
attention
background
building
caution
city
closeup
color
danger
detail
direction
information
modern
orange
outdoor
reconstruction
red
repair
repairing
restriction
road
road sign
road works
roadside
roadsign
roadwork
safety
service
sign
signal
signboard
site
speed limit
street
stripe
sun
symbol
temporary
traffic
triangle
triangular
under construction
urban
vehicle
warning
work
yellow
zone