alert
arrow
asphalt
attention
background
barrier
beware
blue
building
caution
color
communication
concept
construction
danger
design
direction
exclamation
hazard
icon
industry
information
mark
pictogram
red
repair
road
safety
security
sign
signage
signal
slow
stop
street
symbol
traffic
transit
transport
transportation
travel
triangle
trip
under
vintage
warn
warning
white
work
yellow