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LTPP Precision and Bias Requirements for Weight Data - Specific Pavement Study (SPS) Traffic Pooled Fund Study

 

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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FHWA Pavement Links

» Design
» Construction
» Preservation
» Maintenance
» Management
» Rehabilitation

 

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» Aramis Lopez
202-493-3145
E-mail Aramis
 
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E-mail:LTPPinfo@dot.gov