3d
city
color
control
crossroad
crosswalk
danger
design
direction
electric
electricity
element
equipment
forbidden
go
guidance
highway
icon
illuminated
illustration
intersection
isolated
isometric
lamp
light
object
red
regulate
regulation
road
safety
semaphore
sign
signal
stop
stoplight
street
symbol
traffic
traffic light
transportation
travel
urban
walk
warning