alarm

automatic

barricade

barrier

bcp

beacon

block

boom

border

boundary

car

caution

check

checkpoint

close

closed

construction

control

crossing

danger

detour

distract

drive

driveway

end

entrance

equipment

fence

forbidden

frustration

garage

gate

inspection

laws

lifting

light

lorry

machinery

modern

night

obstruction

open

outdoors

parking

path

point

pole

police

privacy

protection

red

review

revision

ride

rising

road

roadblock

route

safety

security

semaphore

sign

stop

stoplight

street

striped

traffic

transportation

truck

turnpike

verification

way

winter