An apparatus including a collapsible body, a base, and a cap. The body including a spring element coupled to the body to apply an extension force. The spring element having a helical geometry. The collapsible body has a high visibility characteristic. The base is coupled to a first end of the body and has a shape to secure the body and the spring element relative to the base and to receive the body in a collapsed state. The base includes a base coupling element to secure the body in the collapsed state. The cap is coupled to a second end of the body opposite the first end, the cap to, at least partially, close the second end of the body.

An apparatus including a collapsible body, a base, and a cap. The body including a spring element coupled to the body to apply an extension force. The spring element having a helical geometry. The collapsible body has a high visibility characteristic. The base is coupled to a first end of the body and has a shape to secure the body and the spring element relative to the base and to receive the body in a collapsed state. The base includes a base coupling element to secure the body in the collapsed state. The cap is coupled to a second end of the body opposite the first end, the cap to, at least partially, close the second end of the body.

A system includes a directional sign having a plurality of lights capable of indicating an intended traffic direction, a telescoping central mast coupled to the sign, a base coupled to the central mast, the base having wheels, and at least one light in communication with at least one power source, the at least one light being disposed on the telescoping central mast.

A system includes a directional sign having a plurality of lights capable of indicating an intended traffic direction, a telescoping central mast coupled to the sign, a base coupled to the central mast, the base having wheels, and at least one light in communication with at least one power source, the at least one light being disposed on the telescoping central mast.

An emergency vehicle foldable barrier assembly for protecting law enforcement, emergency workers, and others near vehicles pulled over on the road shoulder includes a rear barrier apparatus and a side barrier apparatus. The rear barrier apparatus comprises a rear mounting plate and a rear hinge configured to mount to a trunk end of an emergency vehicle adjacent a driver's side. A rear barrier bar is coupled to the rear hinge and has a curved portion configured to conform to the curvature of the trunk end. A plurality of rear lights is coupled to the rear barrier bar. The side barrier apparatus comprises a side mounting plate and a side hinge configured to mount to the driver's side of the emergency vehicle proximal the trunk end. A side barrier bar is coupled to the side hinge. A plurality of side lights is coupled to the side barrier bar.

An emergency vehicle foldable barrier assembly for protecting law enforcement, emergency workers, and others near vehicles pulled over on the road shoulder includes a rear barrier apparatus and a side barrier apparatus. The rear barrier apparatus comprises a rear mounting plate and a rear hinge configured to mount to a trunk end of an emergency vehicle adjacent a driver's side. A rear barrier bar is coupled to the rear hinge and has a curved portion configured to conform to the curvature of the trunk end. A plurality of rear lights is coupled to the rear barrier bar. The side barrier apparatus comprises a side mounting plate and a side hinge configured to mount to the driver's side of the emergency vehicle proximal the trunk end. A side barrier bar is coupled to the side hinge. A plurality of side lights is coupled to the side barrier bar.

A bollard system may includes a bollard, a carrier device, a lock plate, and a cover plate. The bollard may be rotatable between a deployed configuration and a stowed configuration. The carrier device may have a recess adapted to carry the bollard in the stowed configuration, and may be adapted to be recessed within the ground. The lock plate may be adapted to maintain the bollard in the deployed configuration. The cover plate may be carried by the carrier device and adapted to cover a portion of the recess. The cover plate may be moveable between an opened position and a closed position. When the cover plate is in the opened position, the bollard may be rotatable between the deployed configuration and the stowed configuration. When the cover plate is in the closed position, the cover plate may be configured to be flush with the ground.

A bollard system may includes a bollard, a carrier device, a lock plate, and a cover plate. The bollard may be rotatable between a deployed configuration and a stowed configuration. The carrier device may have a recess adapted to carry the bollard in the stowed configuration, and may be adapted to be recessed within the ground. The lock plate may be adapted to maintain the bollard in the deployed configuration. The cover plate may be carried by the carrier device and adapted to cover a portion of the recess. The cover plate may be moveable between an opened position and a closed position. When the cover plate is in the opened position, the bollard may be rotatable between the deployed configuration and the stowed configuration. When the cover plate is in the closed position, the cover plate may be configured to be flush with the ground.

A system including a plurality of warning devices (100) each with a radio transmitter (111) and a positioning system (109). Each warning device is arranged to communicate with at least one other of the warning devices so that at least one of the plurality of warning devices can determine the mutual positions of the plurality of warning devices, determine a pattern from the mutual positions and transmit a specific message corresponding to the pattern.

A system including a plurality of warning devices (100) each with a radio transmitter (111) and a positioning system (109). Each warning device is arranged to communicate with at least one other of the warning devices so that at least one of the plurality of warning devices can determine the mutual positions of the plurality of warning devices, determine a pattern from the mutual positions and transmit a specific message corresponding to the pattern.