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Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

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Publication

Field Measurements on the Effect of Temporary Rumble Strips in Work Zone Flagging Operations

Author/Presenter: Hawkins, Neal; Knickerbocker, Skylar
Abstract:

Limited-scale field measurements were collected to quantify the impact of two temporary rumble strip (TRS) layouts at two different two-lane roadway construction projects in Iowa. The field work was not designed to produce statistically valid comparisons for TRS effectiveness, nor contrast between TRS layouts, work zone project locations, or measured locations per site. The findings are not comprehensive or consistent with any type of before/after or test/control evaluation. However, given the results, the presence of temporary rumble strips were found to have the following impacts as vehicles approached the work zones:

  • Increased driver braking
  • Minimal driver avoidance (driving around the rumble strips)
  • Reduced vehicle speeds

These field data are considered positive and should serve future study efforts in terms of hypothesis development and testing as part of a controlled evaluation.

Publisher: Iowa State University
Publication Date: May 2017
Full Text URL: Link to URL
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Behavior; Measures of Effectiveness; Speed Control; Temporary Rumble Strips; Temporary Traffic Control; Work Zones

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