The present invention relates to posts, carriages, methods of manufacturing the components and their assembly into a barrier. The invention also includes a Z post attachment includes an attachment tab 8.016 and end engagement flange 8.024, 8.026 adapted to engage the end of the post. The arrangement can include a delineator 8.030 which is skew in relation to the tab 8.016, so as to provide reflector faces 8.032 which face oncoming traffic.

A vehicle barrier includes a first post and a second post each having a top end and a planar wall, a barrier beam extending longitudinally in a same vertical plane as the first post and the second post and the barrier beam separating an attack side from an asset side, a first post connection attaching the barrier beam to the first post, the first post connection comprising a first beam plate extending from a first end of the barrier beam, a first post plate extending from the planar wall of the first post, and a first pin vertically disposed in the first beam plate and the first post plate, and a second post connection attaching the barrier beam to the second post.

A system for illuminating a carriageway in a case of fog includes a road safety barrier arranged along the carriageway, at least one fog density detecting device arranged along the road safety barrier, and a plurality of light sources borne by the road safety barrier, distributed along the road safety barrier, and oriented for each to emit a light beam having a direction that is transversal to an extension axis of the road safety barrier so as to illuminate signage on the carriageway. A control unit that is connected to the light sources and to the fog density detecting device is configured to activate the light sources when the fog density detecting device detects a fog density value of above a threshold value.

A system and method for installing or altering a guardrail section on site is provided, as is a method for installing or altering guardrail sections on site. The system comprises a punch press comprising a throat for receiving a guardrail section therein comprising a punch suitable for punching a hole through the guardrail section and a die capable of receiving the punch after passage through the guardrail section. An articulating arm is attached to the punch press and a mobile device is attached to the articulating arm wherein the mobile device is capable of manipulating the articulating arm to place the punch press in engaging relationship with the guardrail section.

A highway safety protective fence includes a processed steel guardrail board and a protective sleeve, wherein the protective sleeve is sleeved to an outer surface of the processed steel guardrail board. Furthermore, a method for manufacturing the highway safety protective fence includes steps of: conveying an original steel guardrail board to a quenching furnace through a temperature withstanding ceramic stick, quenching, conveying to a constant temperature furnace, staying, conveying to a quenching oil solution tank, cooling in sequence and obtaining a processed steel guardrail board; conveying the processed steel guardrail board to a rubber coating machine through a conveying belt, and packaging the processed steel guardrail board with the protective sleeve to obtain the highway safety protective fence. In the highway safety protective fence provided by the present invention, the steel guardrail board is quenched to greatly increase the safety factor.

The present invention relates to posts, carriages, methods of manufacturing the components and their assembly into a barrier. The invention also includes a Z post attachment includes an attachment tab 8.016 and end engagement flange 8.024, 8.026 adapted to engage the end of the post. The arrangement can include a delineator 8.030 which is skew in relation to the tab 8.016, so as to provide reflector faces 8.032 which face oncoming traffic.

A roadway, guard rail or safety barrier having a post and beam construction wherein the beam is mounted to the post by means of a carriage, the beam being secured to the carriage by a securement means, the carriage being adapted to travel longitudinally relative to the post in the event of a collision, the post further including at least one carriage support means, and one or more engagement means on an outer face of the post, the engagement means being adapted to be engaged by the securement means to provide resistance to movement of the carriage with respect to the post, wherein the carriage is sized and shaped so as to not engage or to minimize engagement with the engagement means during the movement.

A cut-and-processed product of a ZnAlMg-based plated steel material including a base steel material and a ZnAlMg-based plating layer covering a surface of the base steel material, in which a cut end surface of the cut-and-processed product is covered with a linear film in which a component of the ZnAlMg-based plating layer linearly flows, and a coverage of the cut end surface with the linear film is from 60 to 90%, a non-plated surface of the base steel material and the linear film around the non-plated surface, in the cut end surface of the cut-and-processed product, are covered with a repair coat, an initial coat resistivity is from 10 to 1000 /cm.sup.2 and a coat resistivity after immersion of the cut-and-processed product in 5% by mass salt water for 3 hours is from 5 to 50 /cm.sup.2, in the repair coat, and a thickness of the repair coat is from 10 to 100 m, as well as a guardrail utilizing the cut-and-processed product.