2
access
area
automatic
barricade
barrier
because
black
blockade
blocked
blockers
bollard
building
city
coaches
control
danger
enter
entrance
equipment
hydraulic
line
metal
passage
pole
preventing
prohibition
protection
reasonable
regulation
restricted
rising
road
roadblock
safety
secure
security
spoiled
steel
stop
street
stripes
traffic
transport
transportation
urban
vehicle
warning
yellow