What are the rules for setting up billboards on both sides of the road?

There are the following provisions for setting up billboards on both sides of the highway: Article 56 of the Highway Law of People's Republic of China (PRC) stipulates that it is forbidden to build buildings and ground structures in the building control areas on both sides of the highway except for the needs of highway protection and maintenance. Expressway advertising facilities belong to ground structures and are prohibited by law. This view holds that some local laws and regulations have the authority to set up billboards in the building control area after permission, which conflicts with the superior law and is illegal. Article 54 of the National Highway Law of the People's Republic of China stipulates that no unit or individual may set up signs other than highway signs within the scope of highway land without the approval of the transportation department of the local people's government at or above the county level. According to this regulation, with the approval of the transportation department of the local people's government at or above the county level, off-highway signs can be set up within the scope of highway land use. Billboards and other facilities belong to off-highway signs and can be set up with permission. This can maximize the social and economic benefits of the expressway. The National Highway Law of the People's Republic of China prohibits the construction of buildings and structures in the building control area, mainly to reduce the influence of the surrounding environment on the traffic of highway vehicles. If buildings and structures are allowed to be built, it will adversely affect the personal health and safety of people engaged in production or life in buildings and structures and the normal running of vehicles on highways. Advertising facilities, like signboards, will not have much impact, and it is also in line with the original intention of legislation to equate advertising facilities with signboards. "Regulations on Highway Safety Protection" Article 11 Local people's governments at or above the county level shall, according to the principles of ensuring highway operation safety and saving land and the needs of highway development, organize transportation, land and resources departments to delimit the scope of highway construction control areas. The scope of the highway construction control area, that is, the distance from the outer edge of the highway land to the outside, is: for the expressway, the distance from the outer edge of the highway land to the outside is not less than 30 meters.