A bollard sleeve with a removable or replaceable cover is described. In one example, the bollard sleeve includes a cover portion and a sleeve portion coupled to the cover portion. The cover portion can have a cover removably coupled to a skirt, and the sleeve portion can have a tab. When the tab is in a first position, the tab can prevent the cover from being removed. When the tab is in a second position, the tab can form an opening that allows the cover to be removed. The tab can be bent from the first position to the second position, or the tab can be removed from the sleeve portion.

A collapsible boundary delineator includes a base for placement on a ground surface and a divider member that is movable relative to the base between a raised, operative position and a lowered, inoperative position. The base includes a pair of base members that are engageable with each other, and the divider member includes a pair of spaced apart ends secured one to each of the base members. When the base members are engaged together the divider member is in the raised, operative position and when the base members are disengaged from each other the divider member is in the lowered, inoperative position. A selectively releasable latch arrangement carried by the base members is movable between a latching position for selectively maintaining the base members in engagement with each other and a release position for selectively enabling the base members to be moved apart from each other.

Ground-based barrier systems are described for permitting or inhibiting vehicle passage, and capturing unauthorized vehicles. One example of the present technology is directed to a ground-based vehicle barrier system, comprising a bollard movable between a recessed position permitting vehicle passage and an extended position inhibiting vehicle passage. A link is connected to or formed as part of the bollard. The link is extending transverse to the bollard. The ground-based vehicle barrier system further comprises a drive connected to a connection point of the link and configured to selectively move the bollard in the recessed and extended positions.

A collapsible boundary delineator includes a base for placement on a ground surface and a divider member that is movable relative to the base between a raised, operative position and a lowered, inoperative position. The base includes a pair of base members that are engageable with each other, and the divider member includes a pair of spaced apart ends secured one to each of the base members. When the base members are engaged together the divider member is in the raised, operative position and when the base members are disengaged from each other the divider member is in the lowered, inoperative position. A selectively releasable latch arrangement carried by the base members is movable between a latching position for selectively maintaining the base members in engagement with each other and a release position for selectively enabling the base members to be moved apart from each other.

A bollard sleeve with a removable or replaceable cover is described. In one example, the bollard sleeve includes a cover portion and a sleeve portion coupled to the cover portion. The cover portion can have a cover removably coupled to a skirt, and the sleeve portion can have a tab. When the tab is in a first position, the tab can prevent the cover from being removed. When the tab is in a second position, the tab can form an opening that allows the cover to be removed. The tab can be bent from the first position to the second position, or the tab can be removed from the sleeve portion.

A safety barrier assembly is provided for a parking garage is positioned in proximity to an opening for a VRC and includes a horizontal AGV safety beam and upper and lower pedestrian barriers having horizontal railings and vertical legs. The vertical legs are slidable within openings at opposite ends of the AGV safety beam. The vertical legs of the upper pedestrian barrier are longer than those of the lower pedestrian barrier. The AGV safety beam can be moved vertically between a lower position where the AGV safety beam is substantially adjacent a floor of the parking garage and an upper position where the AGV safety beam is elevated from the floor. The horizontal railings of the pedestrian barriers are parallel to and spaced above the AGV safety beam in the lower position. However, the horizontal railings abut the AGV safety beam in the upper position.

A roadblock for temporary installation to block traffic and/or as a security precaution includes an elongated casing with two opposing longitudinal side walls. The two side walls join an upper wall. At least one casing support structure is located in the elongated casing and connects to both side walls. Supports for resting on the ground/surface are connected to the lower side of the elongated casing and/or the lower side of the casing support structure. Plural stabilization arms protrude from one of the longitudinal side walls and are detachable.

A collapsible barrier is provided that comprises multiple collapsible elements, wherein each one of the collapsible elements has a bottom edge, a first side edge, and a second side edge, wherein the bottom edge is configured to pivot so as to allow the collapsible element to move between an upright state and a horizontal state, and wherein the collapsible elements are adjacently arranged so that the collapsible barrier is either in an upright state when the multiple elements are in an upright state, or in a horizontal state when the multiple collapsible elements are in a horizontal state.