Local Road Management Manual 382 In the case of continuously reinforced concrete which has no joints, the joint spalling should be rated as 0. Spalling as Measured at Joint The affected area of cracking at a location is defined to be rectangular in shape and dependent upon the extremities of the cracking. The affected area for single longitudinal cracking is calculated as the product of the length and a width of 0.5 m. If branching or meandering of the crack affects a more extensive width, then the affected width is used in the calculation. Similarly, the width of the area affected by transverse cracks is taken as 0.5 m unless more extensive. These calculations are done within the Data Entry Spreadsheet (DESS). The sketch illustrates this concept. 3.2.4. Pavement Cracking (Concrete Pavement) Assessed over total area of segment DEFINITION Cracking is an indicator of rigid pavement breakup. The severity of cracking is determined by the crack width but hairline cracks are deemed not significant and are disregarded. Slabs that are considered shattered shall not