snow fences called "Yukigakoi" made of reeds, chives, and wooden boards have been made for a long time. Even now, the culture of making "Yukigakoi" can be seen in some areas such as Hokkaido. As for transportation facilities, wooden fences made on railway lines in the 1880s as a measure against snowstorms began. However, at the beginning, it was difficult to predict where the snowdrift would be formed, and it was not possible to control the snowdrift well, and there was also a fire accident caused by the sparks generated from the steam locomotive due to the wooden structure, so it was unpopular. It is said that it has replaced the Railroad snow forest in Japan as well. On the other hand, for roads, a structure called a "Blowing pool type snow fence" was studied and installed for the first time in 1961, referring to the wooden Snow fence used all over the world. Then, in 1967, the Hokkaido Regional Development Bureau Construction machinery workshop (at that time) developed a "Blow-off snow fence" that began to be installed on national roads in 1969, and later the Hokkaido Development Civil Engineering Research Institute (Currently, Public Works Research Institute Cold Region Civil Engineering Research Institute) researched "Blow-up prevention type snow fence" and installed it in 1978, and further applied "Blow-up prevention type snow fence" to "Blowing-proof snow fence" from 1981 and since 1988. It came to be installed. In recent Japanese railways, "Blowing pool type snow fence" and "Blowing-proof snow fence" have been re-evaluated for their usefulness based on the research results and achievements on the road, so they will be used again as railway snow protection measures. Is becoming. See also Snow guard, a device attached to roofs to prevent snow from falling on people below Snow shed, which is designed so that snow collects on top References External links Plan for a 3 meter Wyoming-style snow fence. Plan for a 3.6 meter Wyoming-style snow fence. "What’s That Thing: Roadside Fence Edition", by Mark Vanhoenacker, Slate, Aug. 1, 2013 Snow fences: do they still serve a purpose? Building effective Snow Fences – Better than a good idea Fences Fence Avalanche safety