Cross-Correlation Analysis of Line Laser High-speed Inertial Profilers. Issue 5 (May 2020)

• Record Type: Journal Article
• Authors: Borelli, Noah; Choubane, Bouzid; Greene, James; Holzschuher, Charles; Fletcher, James
• Is Part Of: Transportation research record. Volume 2674:Issue 5(2020)
• Page Start: 626
• Page End: 636
• Publication Date: 2020-05
• Subjects: Transportation -- Periodicals; Roads; Transport -- Périodiques; Routes -- Périodiques; Routes -- Conception et construction -- Périodiques; Roads; Transportation; 388.05
• DOI: 10.1177/0361198120917371
• Languages: English
• ISSNs: 0361-1981

Abstract

Thirteen different line-laser high-speed inertial profilers from four different manufacturers were recently tested at the Florida Department of Transportation (FDOT) Inertial Profiler Test Track. The hot-mix asphalt (HMA) track incorporates both dense and open-graded sections with international roughness index (IRI) values ranging from 34 to 104 in./mi. A cross-correlation analysis was performed on the resulting ride data. The accuracy comparison was performed using a SurPro reference profiler. The profilers as a group met the AASHTO R 56 cross-correlation criteria on each section except on a smooth, open-graded section. The profilers as a group met the repeatability cross-correlation on this section, but did not meet the accuracy cross-correlation requirement. This paper presents a description of the testing program, data collection efforts and subsequent analyses and findings.