Guidance for the Design and Application of Shoulder and Centerline Rumble Strips (2009) / Chapter Skim
Currently Skimming:
Pages 6-11
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 6... ...
In addition, shoulder rumble strips are typically discontinued at Magnitude and Nature of Highway Safety Concerns Related to Shoulder and Centerline Rumble Strips
|
From page 7... ...
. Relation to roadway Crash type On roadway Off roadway Shoulder Median Other/unknown Total Fatal Crashes Single Vehicle 6,507 12,340 2,431 1,022 353 22,653 Multiple Vehicle 15,647 297 302 198 92 16,536 Total 22,154 12,637 2,733 1,220 445 39,189 Injury Crashes Single Vehicle 154,000 320,000 14,000 48,000 28,000 564,000 Multiple Vehicle 1,235,000 7,000 1,000 7,000 2,000 1,252,000 Total 1,390,000 327,000 15,000 54,000 30,000 1,816,000 Property-Damage-Only Crashes Single Vehicle 328,000 598,000 31,000 81,000 277,000 1,314,000 Multiple Vehicle 2,957,000 11,000 3,000 14,000 5,000 2,990,000 Total 3,284,000 609,000 34,000 94,000 282,000 4,304,000 All Crashes Single Vehicle 488,000 930,000 48,000 129,000 306,000 1,901,000 Multiple Vehicle 4,208,000 18,000 5,000 21,000 7,000 4,258,000 Total 4,697,000 948,000 53,000 150,000 313,000 6,159,000 Crash severity Fatal Injury Property damage only Total First harmful event Number Percent Number Percent Number Percent Number Percent Collision with Motor Vehicle in Transport: Angle 8,119 20.7 586,000 32.3 1,185,000 27.5 1,779,000 28.9 Rear-end 2,118 5.4 513,000 28.2 1,309,000 30.4 1,824,000 29.6 Sideswipe 958 2.4 71,000 3.9 392,000 9.1 463,000 7.5 Head-on 3,970 10.1 62,000 3.4 57,000 1.3 123,000 2.0 Other/unknown 192 0.5 *
|
From page 8... ...
This suggests the expected safety effectiveness of shoulder rumble strips may likely be different on rural and urban two-lane roads due to the difference in crash distributions between rural and urban areas and probably on other roadway types as well. Neuman et al.
|
From page 9... ...
Drowsy and Fatigued Driving The discussion of SVROR and head-on crashes above does not illustrate a complete picture of the frequencies or proportions of crashes that are potentially remedied by shoulder and centerline rumble strips. What is missing is the driver behavior associated with these crashes.
|
From page 10... ...
Crashes and Heavy Vehicles There has been some debate on the impact that shoulder and/or centerline rumble strips can have on reducing the number of crashes involving heavy vehicles. One issue is whether a sufficient amount of stimuli, either auditory or tactile, is generated within the passenger compartment to alert a truck driver; the second issue is whether heavy vehicles are involved in the types of crashes that could be remedied by shoulder and/or centerline rumble strips.
|
From page 11... ...
The data do not support the need to design and install shoulder rumble strips for heavy vehicles but do potentially support the need to design and apply centerline rumble strips to reduce the frequency of head-on crashes involving heavy vehicles.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.