Stopping Behavior at Real-World Stop-Controlled Intersections with and without In-Lane Rumble Strips
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Stopping Behavior at Real-World Stop-Controlled Intersections with and without In-Lane Rumble Strips
Published Date
2006-11
Publisher
Minnesota Department of Transportation
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Report
Abstract
This was the third in a series of studies investigating various aspects of rumble strips. In this study, to
determine the effect of rumble strips on the real-world stopping behavior of drivers, we used a radar gun
to collect speed data from over 400 vehicles on the approaches to ten intersections selected from a sample
of 274 approaches. We found that, after drivers encountered the first set of in-lane rumble strips, they
slowed down earlier on real-world approaches With Rumble Strips than on real-world approaches Without
Rumble Strips—the difference was, on average, 2.0 mph to 5.0 mph (depending on vehicle category and
type of approach). In addition, speeding outliers were more likely to slow down earlier on approaches
With Rumble Strips. The effect of the presence of in-lane rumble strips on stopping behavior was greater
for approaches where the driver’s view of traffic on the major road is obscured on one or both sides of the
road. The study suggests that stop-controlled intersections at which cross-traffic is obscured by manmade
structures and/or vegetation on one or both sides of the intersection would be good candidates for
implementing in-lane rumble strips. It is worth noting that while in-lane rumble strips are likely to reduce
crashes, they cannot eliminate them. Some drivers might still run stop signs and others might misjudge
gaps.
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Minnesota Department of Transportation
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Harder, Kathleen A.; Bloomfield, John R.; Chihak, Benjamin. (2006). Stopping Behavior at Real-World Stop-Controlled Intersections with and without In-Lane Rumble Strips. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/152928.
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