Practice of Rumble Strips and Rumble Stripes (2016) / Chapter Skim
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Pages 21-27
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From page 21... ...
21 interior sound levels, and may not produce adequate feedback to alert inattentive drivers (Terhaar 2015)
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22 re-milled after every chip seal. Depths shallower than 3⁄8 inches do not provide enough noise/vibration to alert the errant driver.
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23 This basically ensures that bicycle concerns will always be considered as part of the design process. The Arkansas DOT indicated that a common complaint of bicyclists is that a continuous shoulder rumble strip along a narrow shoulder sometimes requires bicyclists to move into the travel lane.
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24 FIGURE 11 Pennsylvania DOT edge line rumble effectiveness. FIGURE 12 Pennsylvania DOT center line rumble effectiveness.
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25 installed. The data shows that as the number of miles increased, the average number of run-off-the-road fatalities decreased from a high of 745 in 2008, with more than 1,100 miles of edge line rumbles, to a low of 612 in 2014 with more than 4,300 miles of edge line rumbles.
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From page 26... ...
26 head-on, sideswipe opposite, and single vehicle run-off-theroad incidents. The study of crash severity resulted in the reduction in fatalities and all categories of injury crashes (Table 19)
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27 suggest that rumble strips did not create adverse impacts on pavement performance in the short-term. Table 20 shows the comparison results.
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