PSI = 5.03 log(1 + SV) 1.38 (RD)2 0.01(C + P)1/2 (12-1) – – – where: PSI = Present Serviceability Index SV = Slope variance over section from CHLOE profilometer RD = Mean rut depth (in.) C = Cracking (ft/1000 ft2) (asphalt pavements) P = Patching (ft2/1000 ft2) Table 12-2. Distress included in the FHWA Distress Identification Manual (). Continuously Reinforced Asphalt Pavements Jointed Plain Concrete (JPC) Concrete (CRC) Cracking Cracking Cracking Fatigue Corner breaks Durability (“D”) Block Longitudinal Durability (“D”) Edge Longitudinal Transverse Longitudinal Transverse Surface Defects Reflection Joint Deficiencies Map cracking and scaling Transverse Joint seal damage Polished aggregate Patching and Potholes Spalling of longitudinal Popouts joints Patch/patch deterioration Spalling of transverse joints Miscellaneous Distresses Potholes Blowups Surface Deformation Surface Defects Transverse construction Map cracking and scaling joint deterioration Rutting Polished aggregate Lane-to-shoulder drop-off Shoving Popouts Lane-to-shoulder separation Surface Defects Patch/patch deterioration Miscellaneous Distresses Bleeding Punchouts Blowups Polished aggregate Spalling of longitudinal Faulting of transverse joints Raveling joints and cracks Bleeding and pumping Miscellaneous Distresses Lane-to-shoulder drop-off Longitudinal joint seal Lane-to-shoulder drop-off Lane-to-shoulder separation damage Water bleeding and Patch/patch deterioration pumping Bleeding and pumping Table 12-3. Pavement distresses identified in ASTM D6433 (ASTM 2009). Asphalt Pavements Jointed Concrete Pavements Alligator (fatigue) cracking Blowup/buckling Bleeding Corner break Block cracking Divided slab
PSI = 5.03 – log(1 + SV) – 1.38 (RD)2 – 0.01(C + P)1/2 (12-1) where: PSI = Present Serviceability Index SV = Slope variance over section from CHLOE profilometer RD = Mean rut depth (in.) C = Cracking (ft/1000 ft2) (asphalt pavements) P = Patching (ft2/1000 ft2) Table 12-2. Distress included in the FHWA Distress Identification Manual (). Asphalt Pavements Jointed Plain Concrete (JPC) Continuously Reinforced Concrete (CRC) Cracking Fatigue Block Edge Longitudinal Reflection Transverse Patching and Potholes Patch/patch deterioration Potholes Surface Deformation Rutting Shoving Surface Defects Bleeding Polished aggregate Raveling Miscellaneous Distresses Lane-to-shoulder drop-off Water bleeding and pumping Cracking Corner breaks Durability (“D”) Longitudinal Transverse Joint Deficiencies Joint seal damage Spalling of longitudinal joints Spalling of transverse joints Surface Defects Map cracking and scaling Polished aggregate Popouts Miscellaneous Distresses Blowups Faulting of transverse joints and cracks Lane-to-shoulder drop-off Lane-to-shoulder separation Patch/patch deterioration Bleeding and pumping Cracking Durability (“D”) Longitudinal Transverse Surface Defects Map cracking and scaling Polished aggregate Popouts Miscellaneous Distresses Blowups Transverse construction joint deterioration Lane-to-shoulder drop-off Lane-to-shoulder separation Patch/patch deterioration Punchouts Spalling of longitudinal joints Bleeding and pumping Longitudinal joint seal damage Table 12-3. Pavement distresses identified in ASTM D6433 (ASTM 2009). Asphalt Pavements Jointed Concrete Pavements Alligator (fatigue) cracking Bleeding Block cracking Blowup/buckling Corner break Divided slab
12%20Pavement%20Management.docx