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, Arturo
O'Brien, Eugene J.
Li, Yingyan
Cashell, K.
Permanent link: http://hdl.handle.net/10197/2382
Date: Jun-2008
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
Copyright (published version): 2008 Taylor & Francis
Keywords: Roughness;Classification;Dynamics;Accelerometer;ISO
Subject LCSH: Pavements--Defects--Classification
Accelerometers
Acceleration (Mechanics)--Measurement
DOI: 10.1080/00423110701485050
Language: en
Status of Item: Peer reviewed
Appears in Collections:Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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