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Pavements

 

LTPP Precision and Bias Requirements for Weight Data

Pooled Fund Site 95 Percent Confidence
Limit of Error
Single Axles ± 20 percent
Axle Groups ± 15 percent
Gross Vehicle Weight ± 10 percent
Vehicle Speed ± 1 mph (2 kph)
Axle Spacing ± 0.5 ft. (150 mm)

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Deborah Walker
Turner Fairbank
202-493-3068
E-mail Deborah

Customer Service
202-493-3035
E-mail Customer

 
 
This page last modified on 06/02/06
  
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