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