access
background
black and white
caution
choice
city
color
concept
control
copy space
downtown
drive
driveway
go
go ahead
green
green light
greenlight
guidance
illuminated
midtown
monochrome
move on
office building
road
route
safe
safety
security
semaphore
sign
signal
speed
start
street
traffic
traffic lamp
traffic light
transport
transportation
urban
warning
way