In the cold and snowy region of Hokkaido, Japan, the use of studded tiresbegan in the early 1960's, and it had been quickly popular with motorists. However, since the late 1970's dust pollution caused by the use of studded tires became a serious environmental problem. Then, throughout a variety of public movements for "Non-Studded Tire," the Studded Tire Regulation Law of 1990 was enacted to prohibit the use of them. The regulation has positively eliminated dust pollution; on the other hand, however it has brought about the negative effects with the regulation's unintentional result of making winter roadways extremely slippery. This leads to increasing winter accidents, worsening winter traffic function and increasing deicing chemical usage: these issues remain unsolved. This study evaluates the studded tire regulation enacted in 1990 by employing the logic model approach with the intention of contributing how to evaluate road maintenance programs. For the covering abstract see ITRD E143097.
Samenvatting