automatic
barrier
barrier boom
barrier system
blocking
blurred
bollards
boom
boundary
building
car
caution
city
closed
denied
drive through
end
entrance
entry
equipment
exit
garage
gate
gray
ground threshold
horizontal
iron
limit
lock
lot
manually
metal
old
padlock
painted
park
passage
permit
post
red
road
security
sign
stop
street
system
traffic
transport
vehicle
white