Development of a Pavement Rutting Model from Long-Term Pavement Performance Data

Rutting is one of the most important types of load-associated distresses that develop on flexible pavements. Extensive research has been conducted on the development of empirical models to predict pavement rutting progression using different data sources. However, the rutting data in the Long-Term Pavement Performance (LTPP) database has rarely been used to develop empirical rutting models. This paper uses the rutting data collected on LTPP sections in the State of Texas to statistically estimate the relationship of rut depth and explanatory variables representing pavement structure, materials, traffic loading and climate. All data used in this paper are extracted from different modules of the LTPP database. The proposed model demonstrates a concave trend of the rut depth with respect to the load repetition that is a common finding in most empirical rutting models. All climate parameters in this model show significant effects on the rutting progression. The structural number is statistically significant and has a negative estimated parameter, which indicates that a stronger pavement has smaller rutting depth.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Luo, Rong
  • Prozzi, Jorge A
• Conference:
  • Transportation Research Board 87th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2008-1-13 to 2008-1-17
• Date: 2008

Language

• English

Media Info

• Media Type: DVD
• Features: Figures; References; Tables;
• Pagination: 14p
• Monograph Title: TRB 87th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Climate; Databases; Depth; Flexible pavements; Materials; Pavement design; Pavement performance; Pavement structural numbers; Rutting; Traffic loads
• Identifier Terms: Long-Term Pavement Performance Program
• Uncontrolled Terms: Pavement structure
• Geographic Terms: Texas
• Subject Areas: Design; Freight Transportation; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 01089591
• Record Type: Publication
• Report/Paper Numbers: 08-1038
• Files: TRIS, TRB
• Created Date: Feb 29 2008 7:41AM