The use of vehicle acceleration measurements to estimate road roughness

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Title: The use of vehicle acceleration measurements to estimate road roughness
Authors: González, ArturoO'Brien, Eugene J.Li, YingyanCashell, K.
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Date: Jun-2008
Online since: 2010-08-16T15:43:50Z
Abstract: Road roughness is a broad term that incorporates everything from potholes and cracks to the random deviations that exist in a profile. To build a roughness index, road irregularities need to be measured first. Existing methods of gauging the roughness are based either on visual inspections or using one of a limited number of instrumented vehicles that can take physical measurements of the road irregularities. This paper proposes the collection of data from accelerometers fixed in a specific vehicle type and the use of this data to estimate the road condition. Although the estimate is approximate, accelerometers are being increasingly used by car manufacturers to improve suspension performance and the proposed method is relatively inexpensive to implement and provide road managers with constantly updated measurements of roughness. This approach is possible due to the relationship between the power spectral densities of road surface and vehicle accelerations via a transfer function. This paper shows how road profiles can be accurately classified using axle and body accelerations from a range of simulated vehicle-road dynamic scenarios.
Funding Details: Irish Research Council for Science, Engineering and Technology
Type of material: Journal Article
Journal: Vehicle System Dynamics
Volume: 46
Issue: 6
Start page: 483
End page: 499
Copyright (published version): 2008 Taylor & Francis
Keywords: RoughnessClassificationDynamicsAccelerometerISO
Subject LCSH: Pavements--Defects--Classification
Acceleration (Mechanics)--Measurement
DOI: 10.1080/00423110701485050
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Language: en
Status of Item: Peer reviewed
ISSN: 1744-5159 (electronic)
0042-3114 (paper)
This item is made available under a Creative Commons License:
Appears in Collections:Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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