Pavement Data

Mandli is able to collect and process a wide range of pavement data. Transverse profile indexes convey the condition of a road at a specific station and the road characteristics that can be measured from a transverse profile increase with the number of points in the profile. Road conditions, such as the bump in between dual tire ruts or the width of a PCC fault, manifest themselves on the scale of 1″ and smaller. Several transverse profile classifications exist for analyzing rutting, a condition which affects aging AC roads to varying degrees. Each index indicates a different feature of the transverse profile, and many correspond to road wear and decay. A goal of continuous research in this area has been to correlate these indicators to maintenance and replacement schedules. Indicators like International Ride Index and Ride Number (IRI and RN) attempt to quantify the ride quality of roads.

  • Full spectrum of pavement data analysis available
  • Transverse profile information can be processed including rutting, faulting, crossfall, and shoulder drop-off
  • Longitudinal profile and IRI data can be easily collected

Distress Analysis

An important feature of the pavement management system (PMS) is the ability to accurately determine the condition of the pavement network. The pavement distress condition rating procedure utilized by Mandli follows the Pavement Condition Index (PCI) developed by the U.S. Army Corps of Engineers. The use of PCI on road networks is an accepted method used nation wide and has been formally adopted as a standard procedure by many transportation agencies. The PCI for roads has been published as an ASTM standard, D6433. Calculation of the PCI is based on the results of a visual condition survey in which the distress type, severity, and quantity are identified. The distress data provides insight into the causes of distress whether it is related to load or climate. To determine the condition rating using the PCI method, the pavement is divided into inspection units, which are referred to as “sample units.”

  • Developed by the U.S. Army Corps of Engineers
  • Published as an ASTM standard, D6433
  • Distress type, severity, and quantity are identified
  • Pavement is divided into “sample units”