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Title:

Measuring the Uniformity of Hot-Mix Asphalt Pavements with Digital Image Technology

Accession Number:

01045589

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

This paper discusses the application of imaging techniques in a system for assessing the uniformity of newly constructed pavements. The developed system is designed to be used for the detection of segregated Hot Mix Asphalt (HMA) areas and identification of these areas along a road for HMA quality assurance purposes. The system uses relatively low cost off-the-shelf components for capturing images of new pavements and applies innovative image processing and analysis software for detecting and quantifying segregated areas. The development has included the design of the hardware component of the system as well as the development of the necessary image processing and analysis software. Challenges in the hardware design included the positioning of the camera on a moving vehicle and development of an appropriate illumination system. The image processing module uses a Gray Level Co-occurrence Matrix (GLCM), commonly used in visual texture analysis, to compute various different parameters that characterize surface texture. Measures of contrast, correlation, energy, and homogeneity are used to discriminate areas having different visual texture characteristics in the pavement surface. Testing of the system has been conducted at the Virginia Smart Road. The outputs of the system appear to be well suited for automatic identification of several different types of pavement surfaces. If the system can identify non-uniformities on new construction projects properly, then the use of such a system can help improve the quality of the HMA layers and enhance pavement performance, increasing pavement service life with the consequent reductions in down time from repair work.

Monograph Accession #:

01042056

Report/Paper Numbers:

07-1613

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

de León Izeppi, Edgar David
Flintsch, Gerardo W
Abbott, A Lynn

Pagination:

15p

Publication Date:

2007

Conference:

Transportation Research Board 86th Annual Meeting

Location: Washington DC, United States
Date: 2007-1-21 to 2007-1-25
Sponsors: Transportation Research Board

Media Type:

CD-ROM

Features:

Figures; Photos; References (14) ; Tables

Candidate Terms:

Imaging systems

Uncontrolled Terms:

Off-the-shelf

Subject Areas:

Construction; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I52: Construction of Pavements and Surfacings

Source Data:

Transportation Research Board Annual Meeting 2007 Paper #07-1613

Files:

TRIS, TRB

Created Date:

Feb 8 2007 6:16PM