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Why Do 3.6 Normal Cross Slope

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3.3.3.6 Normal Cross Slope Cross slope is defined as the transverse slope across the pavement from the centreline of an undivided roadway or the edge of the median of a divided roadway to the edge of the carriageway or the face of the kerb. The minimum rate of cross slope applicable to the carriageway is determined by drainage needs. Consistent with the type of highway and amount of rainfall, snow, and ice, the usually accepted minimum values for cross slope range from 1.5 percent to 2.0 percent, however the recommended cross slope is 2.0 percent for all types of roads.

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