Local Road Management Manual 384 according to the defined scales. Severity of cracking is rated according to the predominant average crack width as measured with the Crack Width Scale (see section 5.2) and using the Rigid Pavement marks. Extent of cracking is calculated by the Data Entry Spreadsheet (DESS) according to the total area of cracking over the total area of the segment and expressed as a percentage. Where the overlaid asphalt concrete is cracked, and reflects the condition of the underlying pavement, it should be rated and coded in the normal manner. Where the rigid pavement is covered by an asphalt concrete overlay that is in good condition, the underlying pavement cannot be assessed and this should be recorded under the Rater’s comments. Example: The following cracks were found; In the first 100m - Longitudinal cracks of 3.0m (narrow), Crocodile cracks with a width of 0.5m and length of 5.5m and another 2.0m wide and 1.0m long both with a narrow severity. In the second 100m - Longitudinal cracks of 2.0m (Wide), Crocodile cracks the full lane width for 15m with a severity of narrow. In the third 100m - Longitudinal cracks 1.5m long(Narrow) and Transverse cracks 2.0m long (narrow). In the fourth 100m - Longitudinal cracks 3.0m long (Wide) and Transverse cracks 2.0m long (narrow). These cracks will be recorded on the form as shown in the following table.