Efficient way to measure pavement distress manually: Ministère des Transports du Québec experience

The Ministère des Transports du Québec (MTQ) has developed along the years, an efficient manual way to measure cracks. Once collected by high resolution camera at highway speed, the images are processed by a team of computer-assisted technicians. The images are displayed on a computer screen and an efficient software program assists the operator to measure distress with the mouse. The results have proved that only 30 per cent of the images can be analyzed to obtain an accurate view of the road network. The AASHTO distress identification protocol was modified to increase the repeatability of the measures. The analysis team and the entire process are governed by a Quality Assurance (QA) plan. In this QA plan, the MTQ uses a series of calibration sites. The repeatability, bias and reproducibility of the method were also measured. Distress data is fed into the pavement management system. The program is configured to account for a number of other indicators, such as IRI, rutting, and the effects of freezing and thawing. (a) For the covering entry of this conference, please see ITRD abstract no. E212095.

• Corporate Authors:

  Queensland Department of Main Roads

  477 Boundary Street, Spring Hill, GPO Box 1412
  Brisbane, Queensland  Australia  4001
• Authors:
  • TREMBLAY, G
  • GRONDIN, M
  • LEROUX, D
  • CARRIER, J
• Conference:
  • 6th International Conference on Managing Pavements: The Lessons, The Challenges, The Way Ahead
  • Location: Brisbane Queensland, Australia
  • Date: 2004-10-19 to 2004-10-24
• Publication Date: 2004-10

Language

• English

Media Info

• Pagination: 10P
• Monograph Title: Sixth International Conference on Managing Pavements: The Lessons, The Challenges, The Way Ahead, 19-24 October 2004, Brisbane, Queensland, Australia. Conference Proceedings

Subject/Index Terms

• TRT Terms: Computer programs; Conferences; Cracking; Data collection; Evaluation and assessment; Image processing; Pavement management systems; Pavements; Quality assurance
• ITRD Terms: 8525: Conference; 5211: Cracking; 8623: Data acquisition; 9020: Evaluation (assessment); 8633: Image processing; 2955: Pavement; 3037: Pavement management system; 9123: Quality assurance; 8645: Software
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01014548
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD
• Created Date: Dec 22 2005 3:02PM