00756225

Component

https://doi.org/10.3141/1643-13

http://scholar.google.com...nger&publication_year=1998

In the Long-Term Pavement Performance (LTPP) program, 35-mm black and white, continuous-strip photographs are used as a permanent record of pavement distress development for archival purposes and to quantify the distress severity and extent for pavement performance analysis. The traditional method of interpreting distress from LTPP film utilizes a relatively small image projected onto a digitizing tablet. From quality control checks performed on the interpreted data, it was found that some low severity types of distress, identified from larger magnified images projected onto a wall or projection screen, could not be seen in the smaller image used for distress interpretation. The variability in distresses interpreted directly off of the large format, wall-image projection was assessed through analysis of interpretations performed on six asphalt concrete and six portland cement concrete pavement sections used in the LTPP distress rater accreditation workshops. The data set included distress ratings from eight individuals, four two-person rater teams, and an experienced rater team. Also available were distress ratings performed in the field by the experienced rater team, which are used as reference values which represent the best estimate of ground-truth. Statistical tests show that the film-interpreted distresses from individual raters exhibit much larger variability than those from the rating teams. The most significant contributor to this finding is outlier observations in which one of the individual raters had significantly different ratings than the rest of the group. The spread in the rating teams was much lower. The film interpreted distresses from the experienced group correlated very well with the field-derived reference values.

This paper appears in Transportation Research Record No. 1643, Pavement Management and Monitoring of Traffic and Pavements.

English

p. 95-109

1998

Transportation Research Record

0309065151

Figures (9) ; References (1) ; Tables (8)

Defects; Pavement distress; Pavement performance; Pavements; Photographic materials; Variables

Long-Term Pavement Performance Program

Data; Interpretation

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Nov 17 1998 12:00AM

• "OFF-THE-WALL" PAVEMENT DISTRESS VARIABILITY STUDY
• A COMPARATIVE STUDY OF RIDE QUALITY MEASURING DEVICES
• ALGORITHM DEVELOPMENT FOR DERIVATION OF SECTION-RELATED MEASURES OF TRAFFIC SYSTEM PERFORMANCE USING INDUCTIVE LOOP DETECTORS
• ANALYSIS OF PAVEMENT MANAGEMENT ACTIVITIES PROGRAMMING BY GENETIC ALGORITHMS
• CONTRACTING FOR PAVEMENT DISTRESS DATA COLLECTION
• DEVELOPMENT OF DISTRESS PROGRESSION MODELS USING PANEL DATA SETS OF IN-SERVICE PAVEMENTS
• DEVELOPMENT OF KNOWLEDGE-BASED FORMULA TO PRIORITIZE PAVEMENT REHABILITATION PROJECTS
• EFFECT OF NOISY DATA ON PAVEMENT PERFORMANCE PREDICTION BY ARTIFICIAL NEURAL NETWORKS
• ELECTRONIC PERMITTING ISSUANCE SYSTEM FOR OVERSIZE/OVERWEIGHT VEHICLES
• ENGINEERING APPLICATION OF WASHINGTON STATE'S PAVEMENT MANAGEMENT SYSTEM
• FIELD TEST OF NONINTRUSIVE TRAFFIC DETECTION TECHNOLOGIES
• INTERNATIONAL STANDARDS ORGANIZATION-COMPATIBLE INDEX FOR PAVEMENT ROUGHNESS
• MINIMUM PAVEMENT TEMPERATURE MODELING AND MAPPING FOR ALASKAN CONDITIONS
• PAVEMENT DETERIORATION, RATE OF DYNAMIC FORCE, AND RIDE QUALITY
• PAVEMENT PRESERVATION STRATEGY
• PROJECT SCOPING USING FALLING WEIGHT DEFLECTOMETER TESTING: NEW JERSEY EXPERIENCE
• SWITCHING TO INTERNATIONAL ROUGHNESS INDEX
• TRUCK TRAFFIC CROSSING TEXAS-MEXICO BORDER
• TRUCK WEIGHT ENFORCEMENT MEASURES OF EFFECTIVENESS: DEVELOPMENT AND SOFTWARE APPLICATION
• UPDATE OF LONG-TERM PAVEMENT PERFORMANCE MANUAL DISTRESS DATA VARIABILITY: BIAS AND PRECISION
• VEHICLE RE-IDENTIFICATION AND TRAVEL TIME MEASUREMENT IN REAL-TIME ON FREEWAYS USING EXISTING LOOP DETECTOR INFRASTRUCTURE