air
allowed
attention
auto
blowing
car
caution
design
emergency
equipment
graphic
honk
horn
icon
illustration
isolated
klaxon
label
law
loud
metal
music
no
noise
not
proceed
prohibition
red
road
safety
sign
signal
silence
sound
squeeze
stop
street
symbol
traffic
transport
transportation
trumpet
urban
vehicle
volume
wall
warning
white
zone