Characterization of Hamburg Wheel Tracking Device Testing Results

The Hamburg Wheel Tracking Device was developed as a specification requirement for some of the heavy-duty road to measure rutting (potential) and stripping (moisture susceptibility). The Texas Department of Transportation (TxDOT) adopted cylindrical specimens for testing with the HWTD (Hamburg Wheel Tracking Device) manufactured by PMW, Incorporated. Traditionally, the rut depth has been represented by the largest impression point which occurs randomly along the 11 points. The maximum impression is randomly located and more likely to be in the middle part of specimen. It is difficult to characterize with a single theoretical distribution such as a normal or other such function that defines central tendency. This paper detailed the spatial distributions of Hamburg Wheel Tracking Device Test Results and demonstrated its predictive capability using statistics tools. In addition, the author conducted statistical analysis of all the test points in four patterns, and thus a comparison between all patterns were carried on. Finally, a more reasonable representative pattern is proposed. Central to the approach developed in this research was utilizing a statistics tool to better characterize the deformation. It is certainly more straightforward to represent them with maximum deformation rather that other averaged points. But in cases where small amounts of observed data are available, larger variance could prove prohibitive to reliable analysis, which will finally result in greater uncertainty in predicting performance. Average of the next four maximum deformations presents a relative smaller variance compared to other methods. In case observed data is limited, it will provide a relatively better choice.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407991
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Guo, Runhua
  • Prozzi, Jorge A
• Conference:
  • Applications of Advanced Technology in Transportation. The Ninth International Conference
  • Location: Chicago Illinois, United States
  • Date: 2006-8-13 to 2006-7-16
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 105-110
• Monograph Title: Applications of Advanced Technology in Transportation. Proceedings of the Ninth International Conference

Subject/Index Terms

• TRT Terms: Deformation; Moisture content; Pavement design; Pavement performance; Tracking systems
• Identifier Terms: Hamburg Wheel Tracking Device; Texas Department of Transportation
• Uncontrolled Terms: Wheel tracking; Wheel tracking devices
• Geographic Terms: Texas
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I60: Maintenance;

Filing Info

• Accession Number: 01038603
• Record Type: Publication
• ISBN: 0784407991
• Files: TRIS
• Created Date: Dec 29 2006 11:07AM