Study of KDOT Policy on Lane and Shoulder Minimum Width for Application of Centerline Rumble Strips
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Help
Clear All

Query Builder

Query box

Help
Clear All

For additional assistance using the Custom Query please check out our Help Page

i

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

Filetype[PDF-3.41 MB]


  • English

  • Details:

    • Publication/ Report Number:
    • Resource Type:
    • Geographical Coverage:
    • Edition:
      Final report; July 2009¿Oct. 2011.
    • NTL Classification:
      NTL-OPERATIONS AND TRAFFIC CONTROLS-OPERATIONS AND TRAFFIC CONTROLS ; NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices ; NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Flow ;
    • 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.

    • Format:
    • Funding:
    • Main Document Checksum:
    • File Type:

    Supporting Files

    • No Additional Files

    More +

    You May Also Like

    Checkout today's featured content at rosap.ntl.bts.gov

    Version 3.20