Abstract: This invention relates to a selective tire-impairment device attachable to a roadway surface. The device can include a lateral surface having a piercing element. The piercing element can be oriented downward to selectively impair a sidewall of a tire traveling laterally without affecting a tire traveling in a typical forward direction. The piercing element can severely damage a tire of a vehicle performing a stunt, commonly referred to as a doughnut, due to the lateral direction of travel of a tire during the stunt.

Abstract: A ground marking apparatus is configured to apply marking material to a ground surface. The ground marking apparatus includes a beam supported by a beam mount and extending along a beam axis. A carriage is disposed on the beam and movable on the beam along the beam axis. A carriage motor operably interfaces with the beam and is configured to move the carriage along the beam. A dispense arm is supported by the carriage and is configured to move relative to the beam as the carriage moves along the beam.

Abstract: A vehicle barrier includes a beam extending longitudinally between opposing end posts, the longitudinally extending beam positioned vertically above a ground level and separating an asset side from an attack side, the beam comprising beam sections and a crash post positioned in a same vertical plane as the beam, wherein adjacent beam sections are pivotally connected to the crash post.

Abstract: An anchorless crash cushion apparatus having a plurality of interconnected water-filled crash cushion elements and a non-water filled forward-most cushion element includes vehicle capture structure resisting upward tilting of a frontally impacting vehicle and ramping of the frontally impacting vehicle and stabilizing structure resisting relative rotation between the crash cushion elements in both vertical and lateral planes during vehicle impact. External elongated deformable structural members extend along the sides of the crash cushion elements and bend outwardly away from the crash cushion elements during frontal vehicle impact.

Abstract: A linkage brick assembly, comprising: a least one first linkage brick, at least one second linkage brick and at least one third linkage brick, each linkage brick comprising a top face, a bottom face and four side faces between the top face and the bottom face. Each of the side faces of the first linkage brick forms a traverse engaging groove extending laterally. Each of two opposite side faces of the four side faces of the second linkage brick forms a traverse engaging protrusion extending laterally and each of the other two opposite side faces forms a vertical engaging portion extending vertically. Each of the side faces of the third linkage brick forms a vertical engaging groove extending vertically. Each of the traverse engaging grooves of the first linkage brick is used to engage with each of the traverse engaging protrusions of the second linkage brick through lateral sliding.

Abstract: A shallow-mount, stand-alone security bollard includes a bollard post mounted to a base. The bollard post extends upwardly from within an interior space of the base. The base includes interconnected panels, including panels extending around the interior space of the base, and inner panels connected to the bollard post and dividing the interior space.

Abstract: A texturing machine is provided for the subsequent treatment of a freshly produced concrete layer having a width between left and right edges and extending longitudinally in a working direction. Left and right height sensors are arranged to detect a height above the freshly produced concrete adjacent the left and right edges of the layer. At least one crown height sensor is arranged to detect a height above a crown of the freshly produced concrete layer. A controller is configured to receive input signals from the height sensors and to communicate height control sensors to the height adjustable columns and to communicate a crown control system to the crown actuator. A direction sensor may also detect at least one of the edges of the freshly produced concrete layer. The controller may receive a direction input signal from the direction sensor, and the controller may communicate a direction control signal to a steering actuator of one of the ground engaging units of the machine.

Abstract: A vehicle barrier includes a longitudinally extending beam positioned vertically above and off of a ground level and separating a protected side from an attack side, the beam comprising beam sections, a post positioned in a same vertical plane as the beam and supporting the beam off of the ground level, wherein adjacent beam sections are pivotally connected to the post, wherein the post is an I-beam having a central web, a beam connector plate having first and second vertical holes, the beam connector plate disposed through the central positioning the first and second vertical holes on opposite sides of the central web, and the adjacent beam sections connected to the beam connector plate on opposite sides of the central web.

Abstract: An anti-ramming truck device may include at least one substantially horizontal arresting bar, at least one pivot bar. The pivot bar(s) and arresting bar(s) form, in a vertical plane, an angle of at least 100°. Each arresting bar is rigidly connected to a corresponding pivot bar. The arresting bar(s) are removably fitted into connectors, into which the pivot bar(s) are removably fitted. The connectors maintain a fixed angle of greater than 100° between the arresting bar(s) and the pivot bar(s).

Abstract: An anchorless crash cushion apparatus having a plurality of interconnected water-filled crash cushion elements and a non-water filled forward-most cushion element includes vehicle capture structure resisting upward tilting of an impacting vehicle and ramping of the impacting vehicle and stabilizing structure resisting relative rotation between the crash cushion elements in both vertical and lateral planes during vehicle impact. The forward-most cushion element defines a notch and a metal nose cap having a weakened midsection is located in front of the notch.

Abstract: A debris catching device suitable for an open manhole includes a basket having a diameter slightly less than that of the manhole aperture and a durable flange secured to the periphery of the basket opening. The flange has a plurality of lifting hooks secured to a top face opposite the bottom of the basket. The interior of the rubber flange is reinforced with a ring running throughout the middle circumference thereof.

Abstract: A bollard assembly includes a bollard post, a ground sleeve configured to receive the bollard post, and a stress control device positioned adjacent to the ground sleeve. The stress control device has a face plate and a plurality of support plates secured to a back surface of the face plate. The support plates are angularly space from one another at equal angles and extend radially inward from the back surface towards the ground sleeve such that the ground sleeve fits between the plurality of support plates.

Abstract: A ramp kerb, for supporting a transverse edge of a ramp surface and a ramp lip extension having an attachment portion, comprises a first longitudinally extending channel open at an inner transverse edge of the ramp kerb for receiving a transverse edge of the ramp surface and a second longitudinally extending channel open at the inner transverse edge of the ramp kerb for receiving an attachment portion of the ramp lip extension. The first and second longitudinally extending channels are vertically spaced.

Abstract: A vehicle stopping device includes a casing configured as an open enclosure having an open side, vertical side walls, a horizontal top wall and a horizontal bottom wall forming an interior space of the open enclosure. A pair of caltrop bars are configured to be securely stored within the interior space of the casing in a stored position, and are configured to be activated from the stored position to a deployed position in which the first and second caltrop bars extend out of the interior space of the casing through the open side thereof for positioning on opposite sides of a vehicle tire. Each of the caltrop bars being formed of a bar and one or more caltrops arranged along the bar for puncturing and deflating the vehicle tire when the vehicle tire is driven over the caltrop bars.

Abstract: A curb former (10) includes a rotatable drive shaft (20), a gutter drum (80), and a curb profiling drum (100). The gutter drum (80) is secured to the drive shaft (20) such that the drive shaft (20) and gutter drum (80) rotate together. The curb profiling drum (100) is detachably secured relative to both the drive shaft (20) and the gutter drum (80). This configuration allows one curb profiling drum (100) to be replaced with another curb profiling drum (100) to change the profile of a curb resulting from a curbing operation using the curb former (10).

Abstract: An asphalt paver machine includes a main screed and an extender screed. The extender screed is coupled and configured to move laterally relative to the main screed. The extender screed includes a first screed carriage movably coupled to the main screed by a first cylinder and a second cylinder diagonally arranged relative to one another, and a second screed carriage movably coupled to the first screed carriage by a third cylinder and a fourth cylinder diagonally arranged relative to one another.

Abstract: Embodiments are directed toward a spike strip. The spike strip preferably includes a housing, a plurality of spikes disposed in the housing, a door, and a mover. The door is preferably configured to transition between a closed configuration in which the spikes are covered and prevented from puncturing tires of vehicles driving over the spike strip and an open configuration in which the spikes are exposed and allowed to puncture a tire of a vehicle driving over the spike strip. The mover is preferably configured to transition the door from the closed configuration to the open configuration responsive to a signal provided to the spike strip from a remote location.

Abstract: A bollard system includes a post extension to extend upward from a floor, a first collar to encircle the post extension, a first connector to encircle the post extension adjacent to the first collar, and a first handrail to be connected to the first connector. The bollard system includes a second connector to encircle the post extension adjacent to the first connector, a second handrail to be connected to the second connector, and a second collar to encircle the post extension adjacent to the second connector. The first collar is invertible selectively to a first lock position and a first release position, the first connector having greater freedom to rotate relative to the first collar when the first collar is in the first release position than when the first collar is in the first lock position.

Abstract: A landscape paver includes a PV panel and a frame. The PV panel includes one or more PV cells and is operable to provide electrical power at a panel output terminal in response to operating light incident on a panel upper surface. The frame extends along the panel peripheral edge and defines a frame inside surface which, together with a lower panel surface, defines a base volume. A molded base material is located in the base volume. A light-transmissive paver cover material extends over the panel first surface and over at least a portion of a frame outside surface which faces away from the base volume. The landscape paver may be incorporated in a landscape installation and connected with other such pavers in the installation to provide a ground mounted PV panel array which also functions as a hardscape such as a walkway or patio.

Abstract: A method for correcting the tilt of adjacent concrete slabs on subsided ground and connected at a joint part by tie bars or dowel bars caused by the subsidence of the joint part. The method comprises pushing up a tilted concrete slab by: drilling an injection hole for injecting an expandable resin in one concrete slab at a point 10 to 200 cm away from the joint part and also in the other concrete slab at a point 10 to 200 cm away from the joint part, the point in the other concrete slab being on a line that is orthogonal to the joint part and has the point in the one concrete slab thereon; and simultaneously starting an operation of intermittently injecting an expandable resin from both of the injection holes wherein the expandable resin expands below both of the concrete slabs.