amber
british
changing
color
control
crosswalk
danger
design
detached
direction
electric
electricity
emitting
equipment
forbidden
free
front
go
green
icon
intersection
isolated
lamp
light
multiple
object
order
prescription
red
regulate
retro
road
rule
safety
shiny
sign
signal
silo
single
stop
stoplight
street
symbol
traffic
transportation
urban
vintage
warning
white
yellow