Highway restrictions, elevated roads, traffic restrictions, elevated road manufacturers, national city transportation facilities

Description :

　　Introduction to the installation of height limit protection frames for highways and railway bridges: Firstly, it is illegal for the height limit standards of existing highways to be lower than those of newly constructed highways. Standard basis: Article 35 of the Highway Law stipulates that "Highway management agencies shall maintain highways in accordance with the technical specifications and operating procedures prescribed by the competent transportation department, and highways shall be in good technical condition at all times." The "Technical Specifications for Highway Maintenance" (JTG H10) provides detailed provisions on this. If the corresponding technical standards cannot be met when using highways, it indicates that the maintenance and management units are at fault. Setting up elevated sections on highways is a highway improvement project, and the net height standard stipulated in Article 3.6.1 of the Technical Standards for Highway Engineering (JTG B01) should be applied in accordance with the law. 2、 It is illegal to restrict elevated roads without legal approval. No matter how high the height limit is set, as long as it is not legally approved, it is illegal. The approval mentioned here mainly refers to technical approval. The third national standard for elevated roads is that the height limit of newly-built and reconstructed expressways, first-class highway and second-class highway is less than 5 meters, and the height limit of third-class highway and fourth-class highway is less than 4.50 meters. Basis for production: Article 26 of the Highway Law stipulates that "highway construction must conform to the technical standards of highway engineering." Article 3.6.1 of the Technical Standards of Highway Engineering (JTG B01) stipulates that "a highway shall adopt the same clear height. The clear height of expressways, first-class highway and second-class highway shall be 5.00m; the clear height of third-class highway and fourth-class highway shall be 4.50m." Within this height, no obstacles, including traffic signs and restricted viaducts, are allowed. If there is, it means that this highway is unqualified. Unqualified highways cannot be delivered for use. If it is delivered for use, it is illegal. If the installation of elevated structures causes damage to vehicles and individuals, the design, construction, and acceptance units will be held responsible.

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• Highway restricted elevated road