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Iowa DOT Synthesis of Transverse Rumble Stripes at Rural Stop Controlled Intersections

Project Details
STATUS

In-Progress

PROJECT NUMBER

21-769

START DATE

07/15/21

END DATE

12/31/21

FOCUS AREAS

Safety

RESEARCH CENTERS InTrans, CTRE
SPONSORS

Iowa Department of Transportation

Researchers
Principal Investigator
Nicole Oneyear

Associate Scientist, CTRE

Co-Principal Investigator
Shauna Hallmark

Director, InTrans

Co-Principal Investigator
Hossein Naraghi

Research Scientist, CTRE

About the research

In response to the proposed Baylee’s Bill in the Iowa Legislature, the Iowa Department of Transportation (DOT) was charged through HSB 711 with studying “the effectiveness of rumble strips in preventing vehicle crashes at certain stop-controlled intersections as determined by the department.” The Iowa DOT requested that the Institute for Transportation provide support in accomplishing this.

The following are the project objectives:

  1. Summarize the effectiveness of Transverse Rumble Strips (TRS) at stop-controlled intersections based on current literature
  2. Document the practices of other State DOT’s related to the application of TRS at stop-controlled intersections
  3. Provide cost estimates and benefit cost ratios for various scenarios of TRS implementation in Iowa
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