alert
asphalt
attention
avenue
background
barrier
bitumen
border
boundary
car
concrete
cone
construct
construction
danger
equipment
forbidden
isolated
line
object
obstacle
orange
pave
pavement
plastic
red
reflection
repair
road
roadway
row
safety
security
set
shadow
sign
signal
site
stop
street
striped
symbol
traffic
traffic cone
transportation
triangle
under
warning
white
work