This study investigated the impact of snowstorms on a roadway system and assessed winter
maintenance efforts in improving highway safety from a macroscopic perspective. The
Wisconsin State Trunk Highway System was used as the data source. An inverse
relationship between deicing material consumption and crash counts during snowstorms is
reflected in the analysis; it also implies multiple causes of snowstorm crashes. Primary
factors considered in this research were the effects of various weather conditions and winter …

This study investigated the snowstorm impact on Wisconsin state highway system and
assessed the winter maintenance effort in improving highway safety from a macroscopic
perspective. Though the inverse relationship between the de-icing material consumption
and the crash counts during the snowstorms is not reflected in the analysis, it implies that
causes of snowstorm crashes are multifold. The following main factors were investigated:
weather, human factors, and winter maintenance. The results showed a mixed influence of …