allowed
attention
blue
car
careful
caution
city
color
communication
cross
crossroad
danger
day
driver
driving
freeway
go
green
illuminated
lamp
light
lighted
no
order
pedestrian
people
priority
red
regulation
road
roadsign
rule
safe
safety
sign
signal
sky
stop
street
symbol
traffic
trafficlight
transport
transportation
urban
value
walk
warning
way
yes