초록 ▼

Barrier systems and methods include relatively narrow, cast, silica fume concrete road barriers for work site protection, road edge, and traffic lane divider locations. Reflector-bearing caps close recesses at the location of fasteners securing the barriers to a road surface. Reflectors with mountin

Barrier systems and methods include relatively narrow, cast, silica fume concrete road barriers for work site protection, road edge, and traffic lane divider locations. Reflector-bearing caps close recesses at the location of fasteners securing the barriers to a road surface. Reflectors with mounting portions secured between adjacent end faces of barriers project outward to expose a reflector portion to headlights in an adjoining traffic lane. Barrier extension members affixed atop a line of barriers reduce headlight glare, help prevent vehicles toppling over the barriers, and prevent relative rocking of one barrier with respect to another. Permanent barrier installations include a rope-like soft Butyl rubber seal damming locations where fasteners extend into the road surface to retain a hardening bonding agent and form a liquid and contaminant impervious environment for the fasteners. Drop-in-place barriers with openings extending their entire height locate over supporting uprights previously used for metal strip barrier. And barriers to be located quickly on soft undersurfaces have openings extending their entire height and securing posts driven therethrough.

대표청구항 ▼

A barrier system for roadways includes a cast concrete barrier member having a side to extend parallel to a road traffic lane, at least one recess defined in the side, a generally vertical opening from the recess to the bottom of the barrier, adapted to receive a fastener therethrough affixing the b

A barrier system for roadways includes a cast concrete barrier member having a side to extend parallel to a road traffic lane, at least one recess defined in the side, a generally vertical opening from the recess to the bottom of the barrier, adapted to receive a fastener therethrough affixing the barrier to a supporting surface on which it rests, a cap having a lower projecting portion conforming to the recess and adapted to fit therein, and an upper reflector support means for projection outward of the recess and locating a reflector outward of the recess beyond the surface of the barrier and facing generally horizontally along the barrier to visibly identify the location of the barrier by reflection of light from vehicle headlights.