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Title: Bus Ride Index – a refined approach to evaluating road surface irregularities
Authors: Nguyen, Teron
Lechner, Bernhard
Wong, Yiik Diew
Tan, Jun Yew
Keywords: Engineering::Civil engineering::Transportation
Issue Date: 2019
Source: Nguyen, T., Lechner, B., Wong, Y. D. & Tan, J. Y. (2019). Bus Ride Index – a refined approach to evaluating road surface irregularities. Road Materials and Pavement Design, 22(2), 423-443.
Journal: Road Materials and Pavement Design
Abstract: The road surface quality can be assessed with ride comfort indices because of their strong correlation. Many studies on ride comfort have focused on cars and trucks, but their results are not applicable to buses, which are characterised by inherently different vehicle dynamics. In this study, a quarter-vehicle simulation concept was used to develop a Bus Ride Index (BRI) for evaluating the effect of road irregularities on bus ride comfort. A BRI model was developed to optimise ride comfort depending on seat configuration and air suspension and validated according to technical data. The results show a good regression relationship between BRI and the International Roughness Index (IRI). New IRI thresholds with regard to ride comfort and bus operating speeds were established to serve as a benchmark to develop better pavement maintenance strategies for bus lanes and to estimate road quality based on acceleration data.
ISSN: 1468-0629
DOI: 10.1080/14680629.2019.1625806
Rights: This is an Accepted Manuscript of an article published by Taylor & Francis in Road Materials and Pavement Design on 12 June 2019, available online:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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