allow
amber
blue
car
change
check
city
cloud
color
colorful
concept
control
controler
cross
crossroad
drive
empty
environment
go
green
information
junction
light
no
object
protection
ready
recycling
red
safe
safety
semaphore
set
sign
signal
sky
space
stop
street
traffic
trafficlight
transportation
travel
type
urban
warning
way
yellow
yes