Statistical model of in-vehicle sound generated from highway rumble strips

Eric Todd Donnell, Henry Joseph Sommer, III, Philip M. Garvey, Scott C. Himes, Darren J. Torbic

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Shoulder and centreline rumble strips are used on highways in the USA to prevent single-vehicle run-off-road and opposite direction crashes. Both rumble strip types have been shown to provide positive safety benefits on a variety of roadway types. The elevated in-vehicle sound and vibration levels produced by rumble strip patterns provide the alerting properties to warn drivers that their vehicles have left the intended travel lane. This study estimated a model of in-vehicle sound intensity, frequency, and duration using seemingly unrelated regression. The statistical model indicates that increasing the vehicle speed; rumble strip length, width, and groove depth; and using a milled versus a rolled rumble strip pattern, all increase the in-vehicle sound level relative to the ambient level. A rumble strip on the right-side of the travel lane; increasing the vehicle angle of departure; increasing the centre-to-centre spacing of the grooves; a concrete roadway surface; and a wet roadway surface, all decrease the in-vehicle sound relative to the ambient sound.

Original languageEnglish (US)
Pages (from-to)308-328
Number of pages21
JournalInternational Journal of Vehicle Noise and Vibration
Volume5
Issue number4
DOIs
StatePublished - Jan 1 2009

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Mechanical Engineering

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