Road roughness characteristics in car and truck wheel tracks

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Title: Road roughness characteristics in car and truck wheel tracks
Author(s): Hassan, Rayya; Evans, Robert
Abstract: Road longitudinal profile data were collected on both car and truck wheel tracks for a number of road sections to study the differences in their surface roughness characteristics. Roughness was measured in terms of the heavy articulated truck index (HATI), a measure of pavement ride quality as perceived by heavy truck occupants. Roughness variation between the outer and inner wheel tracks was also investigated. The results showed that lane average values of HATI in truck wheel tracks were higher than in car wheel tracks for about 60% of the studied network. These differences are relatively small but are statistically significant. The results also revealed that subgrade soil type and shoulder seal width influenced roughness variations between the truck and car wheel tracks. Overall, HATI values determined from profile data collected on car wheel tracks resulted in ride perception ratings that matched those determined from measurement in truck tracks for 90% of the studied network.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences
Source: International Journal of Pavement Engineering, (article in press)
Publication year: 2013 (in press)
FOR Code(s): 0905 Civil Engineering
Keyword(s): Expansive soils; Frost action; HATI; Heavy Articulated Truck Index; Roads; Surface roughness; Truck ride; Trucks; Wheel tracks
Publisher: Taylor & Francis
ISSN: 1029-8436
Publisher URL: http://dx.doi.org/10.1080/10298436.2012.740565
Peer reviewed