3d
background
blue
car
change
city
cloud
color
concept
control
cross
danger
empty
equipment
go
green
highway
illuminated
illustration
intersection
isolated
lamp
light
object
red
render
rendering
road
safe
safety
semaphore
set
sign
signal
sky
stop
stoplight
street
symbol
traffic
trafficlight
transport
transportation
urban
walk
warning
way
yellow
yes