arrow
away
background
case
danger
depart
direction
door
doorway
downstairs
emergency
escape
evacuation
exit
figure
fire
follow
green
guide
help
human
illustration
indoor
information
instruction
leaving
man
office
overcome
path
people
protection
red
run
security
sign
silhouette
symbol
toward
universal
upstairs
urban
urgency
vector
wall
warning
way
white