Title: | Development of a Bridge Smoothness Specification for Illinois DOT |
Author(s): | Rufino, Dulce; Baraka, Kenyatta; Darter, Michael I. |
Subject(s): | Bridge, smoothness, lightweight profiler, specification, International Roughness Index |
Abstract: | Smoothness is considered to be the most important ride quality by the highway user. Although bridges are much rougher than
pavements, most of the studies conducted to improve pavement smoothness have been focused solely on pavements. This
report describes the effort of the University of Illinois to develop a preliminary bridge smoothness specification for the Illinois Department of Transportation (IDOT). The preliminary specification presented in this research report is based on the testing
and analysis conducted under this study and reflects the views and experience of the authors. It is emphasized that this draft
specification is not intended for use in construction without significant additional development and field testing. The most
suitable index and equipment are recommended based on a literature review of smoothness indices and different pieces of
equipment.
In addition, International Roughness Index (IRI) and Profile Index (PI) values were computed from testing 20 recently
constructed or rehabilitated IDOT bridges in Illinois using a lightweight profilometer. These data were analyzed in order to
set up smoothness limits for bridges, and a correlation between IRI and PI was established. |
Issue Date: | 2001-05 |
Series/Report: | FHWA-IL-UI-279 |
Genre: | Technical Report |
Type: | Text |
Language: | English |
URI: | http://hdl.handle.net/2142/46348 |
ISSN: | 0197-9191 |
Publication Status: | published or submitted for publication |
Peer Reviewed: | not peer reviewed |
Sponsor: | Illinois Department of Transportation IHR-R24 |
Rights Information: | No restrictions. This document is available to the public through the National Technical Information Service, Springfield, Virginia 22161 |
Date Available in IDEALS: | 2013-11-22 |