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National Trail Surfaces Study

Appendix C

National Center on Accessibility - National Trails Surface Study

Rotational Penetrometer Data Form

Trails Information
Trail Name:  
Trail Lo-cation:  
RP Oper-ator:   RP Data Recorder:  
Rotational Penetrometer
Man-ufac-turer: Beneficial Designs
Serial num-ber: BDRP- Date of last calibration:  
Tire pressure set at 36 psi on (date):   By:  
Date & Test Conditions
Date:   Time:  
Atmos-pheric Tem-pera-ture: F Relative Humidity: %
If the temperature is more than 10 F different than the temperature at the tire pressure check, re-inflate tire before starting to test.
Test Results
1.  Surface at trailhead
Sur-face des-crip-tion:  
Sur-face tem-pera-ture: F    
Trial 1 Firm-ness:   Stability:  
Trial 2 Firm-ness:   Stability:  
Trial 3 Firm-ness:   Stability:  
Trial 4 Firm-ness:   Stability:  
Trial 5 Firm-ness:   Stability:  
Aver-age: Firm-ness:   Stability:  
2.  Surface at ________’       
Sur-face des-crip-tion:  
Sur-face tem-pera-ture: F    
Trial 1 Firm-ness:   Stability:  
Trial 2 Firm-ness:   Stability:  
Trial 3 Firm-ness:   Stability:  
Trial 4 Firm-ness:   Stability:  
Trial 5 Firm-ness:   Stability:  
Aver-age: Firm-ness:   Stability:  
3.  Surface at ________’            
Sur-face des-crip-tion:  
Sur-face tem-pera-ture: F    
Trial 1 Firm-ness:   Stability:  
Trial 2 Firm-ness:   Stability:  
Trial 3 Firm-ness:   Stability:  
Trial 4 Firm-ness:   Stability:  
Trial 5 Firm-ness:   Stability:  
Aver-age: Firm-ness:   Stability:  

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