abstract
architecture
blur
car
caution
city
communication
concept
control
cross
crossroad
crosswalk
danger
direction
drive
electronic
equipment
green
highway
illuminated
intersection
junction
lamp
led
light
object
orange
pedestrian
red
regulate
road
route
safety
semaphore
sign
signal
speed
stop
stopped
street
symbol
town
traffic
transport
transportation
urban
wait
warning
way