attention
auto
automobile
background
black
bright
car
color
colorful
control
crossing
danger
drive
electric
equipment
green
illuminated
isolated
lamp
law
light
lights
movement
object
orange
pedestrian
red
regulation
safe
safety
semaphore
sign
signal
signals
start
stop
stoplight
street
three
traffic
transport
transportation
urban
vehicle
wait
warning
way
white
yellow