The necessary spreading of snow removal, snow disposal, snow melting material in the snow country.

If snow is left as it is, it forms ruts. Also, when snow melts during the day then freezes at night, it becomes a cause of traffic accidents.
In order to remove this traffic hazard as much as possible, 24-hour snow removal and similar work is necessary.
There is no other city in the world with the same level of heavy snowfall as Sapporo. As a result, immense work into snow removal tactics is required.