Briefly describe the main road maintenance safety facilities

Highway traffic safety facilities play an important role in ensuring driving safety and mitigating potential accidents. A good safety facility system should have multiple functions such as traffic management, safety protection, traffic induction, isolation and closure, and glare prevention. Road traffic safety facilities include: traffic signs, road markings, guardrails, isolation fences, lighting equipment, sight guidance signs, anti-glare facilities, etc.

Road traffic signs include warning signs, prohibition signs, instruction signs, guide signs, tourist area signs, road construction safety signs, and auxiliary signs. The purpose of setting up traffic signs is to provide accurate information to road users and ensure safe and smooth traffic. Highway speeds are high, there are many lanes, and sign sizes are much larger than those on ordinary roads.

Pavement markings include prohibited markings, instruction markings, and warning markings. They are spray-painted directly on the road surface or laid out with concrete prefabricated blocks to form lines and symbols that match the road signs. traffic control facilities. There are many types of pavement markings, including lane center lines, parking line vertical markings, curb stone markings, etc. Marking lines include continuous lines, discontinuous lines, arrow indicator lines, etc. White or yellow paint is mostly used.

Safety guardrails on highways should not only prevent vehicles from crossing the road and crossing the central divider into the opposite lane; they should also be able to attract the driver's attention.

The isolation barrier is one of the infrastructures of the highway. It enables full closure of the highway and prevents people and animals from entering the highway. It can effectively eliminate lateral interference, avoid resulting traffic delays or traffic accidents, and ensure the efficiency of the expressway. According to the different materials used, isolation fences can be divided into several categories: metal mesh, expanded steel mesh, barbed wire and evergreen hedges.

Road lighting is mainly to ensure the safety and smooth flow of traffic at night, and is roughly divided into continuous lighting, local lighting and tunnel lighting. Lighting conditions have a great impact on road traffic safety. Line of sight guidance signs are generally placed along both sides of the lane to indicate the road alignment and induce the driver's line of sight. For road sections where sight guidance is necessary at night, set up reflective sight guidance signs.

The purpose of anti-glare facilities is to block the glare of oncoming vehicle headlights, and they are divided into two types: anti-glare nets and anti-glare plates. The anti-glare net uses the width and thickness of the mesh to block the passage of light and reduce the intensity of the beam to prevent the dazzling of oncoming headlights; the anti-glare plate partially blocks the beam of oncoming headlights through its width.