Skip to contentUnited States Department of Transportation - Federal Highway AdministrationSearch FHWAFeedback

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)
 
This page last modified on 06/02/06
  
FHWA Home | Engineering | Pavements

FHWA
United States Department of Transportation - Federal Highway Administration