Common Airport Pavement Maintenance Practices (2011) / Chapter Skim
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From page 11... ...
The maximum size of the sampling unit for AC and PCC pavements is specified in the standard. Data storage and retrieval is facilitated by APMS software such as MicroPAVER (2003)
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• Distress type -- There are 16 pavement surface distress types for AC pavements and 15 for PCC pavements. Considering pavement preservation needs, prominent distresses for AC pavements include longitudinal and transverse cracking, rutting, weathering and raveling, and block cracking.
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. Traditionally, M&R actions designed to improve pavement smoothness have been based on pilot observations and complaints (Larkin and Hayhoe 2009)
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on runways and 12% of surveyed airports reported FWD surveys of taxiways and other facilities. The average frequency of the FWD surveys on runways was 3.7 years.
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Most effectively, condition surveys of pavement surface distresses for the selection and timing of preventive maintenance treatments are annually carried out on candidate pavement sections. The first pavement preservation treatments are typically carried out when the pavement surface layer is between 3 and 5 years old.
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Preventive maintenance treatments are typically planned only from 2 to 18 months in advance. Pavement Performance Modeling Techniques Pavement performance depends on many local factors such as the type and frequency of traffic loads, environmental exposure, subgrade characteristics including drainage, and pavement structure.
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