city
color
danger
dangerous
emergency
equipment
extinguish
extinguisher
faucet
fire
firefighting
fireman
footpath
hose
hydrant
metal
object
outdoor
pavement
pipe
pipeline
plug
plumbing
pressure
prevention
protect
protection
public
red
rescue
road
roadside
safe
safety
security
sidewalk
steel
street
supply
taipei
taiwan
urban
utility
valve
walkway
wayside