barricade
barrier
block
blocker
border
boundary
boundary post
caution
concrete
crash
damaged
danger
equipment
fence
frame
green
guardrail
handrail
icon
iron
limit
limiter
metal
outdoor
parallel
parking
pillar
plate
pole
post
rail
railing
red
reflector
road
roadside
safety
secure
security
stop
street
stripe
striped
structure
symbol
transport
two
walkway
wall
white