Study of KDOT Policy on Lane and Shoulder Minimum Width for Application of Centerline Rumble Strips

Details

• Creators:
  Rys, Margaret J. ; Karkle, Daniel E. ; Russell, Eugene R.
• Corporate Creators:
  Kansas State University. Transportation Center
• Corporate Contributors:
  Kansas. Dept. of Transportation. Bureau of Materials & Research
• Subject/TRT Terms:
  • Road markings
  • Center lines
  • Rumble strips
  • CLRS
  • Centerline rumble strips
• Publication/ Report Number:
  K-TRAN: KSU-10-7
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Edition:
  Final report; July 2009¿Oct. 2011.
• Corporate Publisher:
  Kansas. Dept. of Transportation
• Abstract:
  The objectives of this research were: a) to obtain updated information on DOTs’ policies and guidelines for ; installation of centerline rumble strips (CLRS) in the United States in order to identify current practices; b) to verify the ; before-and-after safety effectiveness of CLRS currently installed in Kansas; c) to determine if CLRS cause levels of exterior ; noise that can disturb nearby residents and propose a minimum distance from houses for installation of CLRS in Kansas; d) ; to estimate the effects of CLRS on vehicles’ operational speed and lateral position and to verify if it is safe to install CLRS ; on sections of highways with narrow shoulders; and e) provide recommendations of when it is beneficial to install rumble ; strips, given known values of traffic volume, shoulder width, and the presence of other types of rumble strips. ; The methodologies that were applied in this research include: a) an email survey that was sent to all state DOTs to ; verify their current guidelines for installation of CLRS; b) application of Bayesian before-and-after methods to investigate ; the safety effectiveness of CLRS in Kansas; c) field data collection according to standard procedures to verify if CLRS ; produce exterior noise levels that can disturb residents that live nearby to treated highways, d) standard field data collection ; methods to investigate how CLRS impact vehicular lateral position and operational speed; and e) modeling and ; interpretation of regression equations to predict number of crashes. ; Based on the analysis of safety performance function (SPF) models for total correctable crashes, on roadways with ; narrow shoulders, SRS only is recommended for all annual average daily traffic levels (AADTs) considered in this study. For ; AADTs lower than 5,750 vehicles per day, CLRS are recommended. For AADTs greater than 3,000 vehicles per day, the ; both configuration is also recommended. The study of SPFs was limited by the fact that only 29 sections of highway were ; used to build the models. ; Overall, both patterns currently installed in Kansas have provided crash reductions and are recommended. Shoulder ; width and traffic volume should be considered as crash predictors for enhancement of the benefits.
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• Format:
  PDF
• Funding:
  C1831
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24776/dot_24776_DS1.pdf
• File Type:
  [PDF - 3.41 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:45dc094b1037d1bcf2bea4d6860c3604f903b8550a3cc44319fda0978d208c7d