This sign is sued when grit is spread onto the roadway surface when ice forms. Additional signs spaced no more than 2 km apart, should be erected along sections of road when grit has been spread on the roadway surface when ice forms.
Where several such sections of road occur in close proximity the first sign may be augmented with an additional supplementary plate Next "" "" km. It can be used on Level 1 or 2/3 Roads.