checkpoint
3d
3d illustration
access
automated
automatic
barricade
barrier
border
boundary
caution
city
close
closed
construction
control
crossing
door
entrance
entry
equipment
exit
fence
forbidden
gate
gateway
icon
illustration
object
parking
passage
protection
restricted
restriction
road
road sign
roadblock
safety
security
service
sign
stop
stop sign
symbol
traffic
transport
transportation
travel
tsar
warning