The present invention relates to a boom gate including a boom gate body having a first end mounted to a pivot mechanism and a second end and a controlled failure region, wherein the boom gate body comprises at least one hollow tube being substantially comprised of carbon fibre or a derivative thereof, and the controlled failure region enables the boom gate to undergo controlled failure upon receiving a high-speed impact.

A barrier comprises a substantially horizontal portion, a substantially rigid ramp portion, a stabilization enhancer, a substantially vertical portion, and a connector portion. The substantially horizontal portion comprising a first side and a second side. The substantially rigid ramp portion is positioned on the first side of the horizontal portion to guide a rolling vehicle onto the horizontal portion. The stabilization enhancer is configured to distribute at least a portion of a groundward force of the rolling vehicle in an effective amount to prevent substantial horizontal movement of the barrier. The substantially vertical portion is positioned on the second side of the horizontal portion to impede movement of the rolling vehicle when traveling towards the second side of the horizontal portion from the first side of the horizontal portion. The connector portion is where the horizontal portion connects to the vertical portion.

A barrier comprises a substantially horizontal portion, a substantially rigid ramp portion, a stabilization enhancer, a substantially vertical portion, and a connector portion. The substantially horizontal portion comprising a first side and a second side. The substantially rigid ramp portion is positioned on the first side of the horizontal portion to guide a rolling vehicle onto the horizontal portion. The stabilization enhancer is configured to distribute at least a portion of a groundward force of the rolling vehicle in an effective amount to prevent substantial horizontal movement of the barrier. The substantially vertical portion is positioned on the second side of the horizontal portion to impede movement of the rolling vehicle when traveling towards the second side of the horizontal portion from the first side of the horizontal portion. The connector portion is where the horizontal portion connects to the vertical portion.

A parking space is reserved by raising a chain about three feet above a parking space. The chain is attached to a post, and a weight is attached to the chain to lower the chain along the post and to drag the lowering chain along the parking space toward the post for full access. A motor with a speed reducer turns a shaft with a chain drive gear and an encoder. A signal receiver and control start the motor to raise or lower the chain when one of two buttons is pressed on a key fob by the authorized space user. The encoder is connected to the control to stop the chain when fully up or down. A stop trigger on the chain activates a stop switch when the chain is fully raised.

Systems, arrangements, barriers and methods for detecting illicit attempts to compromise or penetrate a physical barrier are disclosed. The systems, arrangements, barriers and methods detect illicit attempts to pry, remove or compromise a security barrier from the surface or location it protects, by insider/outsider adversaries, when any type of cabled continuity sensor (optical, electrical) is woven, embedded, or interlaced through the security barrier.

Systems, arrangements, barriers and methods for detecting illicit attempts to compromise or penetrate a physical barrier are disclosed. The systems, arrangements, barriers and methods detect illicit attempts to pry, remove or compromise a security barrier from the surface or location it protects, by insider/outsider adversaries, when any type of cabled continuity sensor (optical, electrical) is woven, embedded, or interlaced through the security barrier.

A magnetic retractable line divider may include at least a reel assembly having a shell, and a magnetic portion is installed thereon. An elastic line divider belt is wound on the reel assembly, and a magnetic member is connected to a lateral end of the line divider belt. The line divider belt is configured to be horizontally pulled out from the reel assembly and travel a preferred distance to attach to a magnetic object, thus achieving line divider effect. Moreover, when someone pushes against the line divider belt with or over a preferred force, the magnetic member is configured to be detached from the magnetic object and automatically retracted into the reel assembly, thus avoiding accident.

An end treatment array for crash attenuation includes a transition barrier module formed of side walls, end walls, a top wall, and a bottom wall, wherein the module walls together define an enclosed interior space. The end treatment array further includes a containment impact sled having an axially extending frame. The frame has a width sufficient to contain the transition barrier module within the frame when in an assembled configuration, and has an axial length which is at least one-half the length of the transition barrier module. The frame defines an interior volume, the purpose of which is to contain a substantial portion of the transition barrier module in the assembled configuration, and to contain debris caused by destruction of the plastic barrier modules in a vehicular impact. The containment impact sled is attached to the transition barrier module.

An end treatment array for crash attenuation includes a transition barrier module formed of side walls, end walls, a top wall, and a bottom wall, wherein the module walls together define an enclosed interior space. The end treatment array further includes a containment impact sled having an axially extending frame. The frame has a width sufficient to contain the transition barrier module within the frame when in an assembled configuration, and has an axial length which is at least one-half the length of the transition barrier module. The frame defines an interior volume, the purpose of which is to contain a substantial portion of the transition barrier module in the assembled configuration, and to contain debris caused by destruction of the plastic barrier modules in a vehicular impact. The containment impact sled is attached to the transition barrier module.

A shaped barrier comprises a substantially horizontal portion, a ramp portion, a substantially vertical portion, and at least one connector. The substantially horizontal portion is configured to increase the stabilizing force between the shaped barrier and the ground in an effective amount to prevent substantial movement of the shaped barrier by distributing at least a portion of a groundward force of a rolling vehicle on a receiving side of the shaped barrier. The ramp portion is configured to receive the rolling vehicle onto the horizontal portion. The substantially vertical portion is configured to impede the movement of the rolling vehicle. The at least one connector is configured to connect the shaped barrier with at least one other shaped barrier.