3d
abstract
ahead
amber
city
color
control
corridor
cross
danger
enter
go
green
hours
illustration
isolated
light
marking
object
onward
permission
permit
red
regulate
render
rendered
rendering
road
rush
safe
safety
semaphore
shape
sign
signal
stop
stoplight
street
symbol
traffic
trafficlight
transit
transport
travel
urban
walk
warning
way
white
yellow