alarm
arrow
background
building
city
danger
direction
door
doorway
emergency
escape
evacuation
exit
extinguisher
fire
floor
green
guidance
help
hotel
icon
indoor
information
inside
interior
light
office
protection
public
rescue
run
safe
safety
security
sign
smoke
stair
station
symbol
thoroughfare
toward
train
transport
transportation
urgency
walk
warning
way
white