National Highway 105 passes through Beijing, Tianjin, Hebei, Shandong, Henan, Anhui, Hubei, Jiangxi, Guangdong and Macao Special Administrative Regions, and the section from Beijing to Dezhou completely overlaps with National Highway 104.
105 national highway has no specific construction time, but is mostly built in sections and then connected into a complete national highway. Each section of the national highway is built by different places, and the construction time is different.
National Highway 105 has been rebuilt many times since its completion. Most national highways are two-way and four-lane, which will be widened when passing through different sections or cities.
National highways and expressways in China all start with G, but there are still some differences. There is no hierarchy between them. According to the technical level, China's highways are divided into expressways, first-class highways, second-class highways, third-class highways and fourth-class highways. National highway generally refers to the main economic trunk highway.
National highways are generally open, expressways are closed, and the speed limit is the lowest in some places.