An Evaluation of Shoulder Rumble Strips in Montana

An Evaluation of Shoulder Rumble Strips in Montana
Author: Robert R. Marvin
Publisher:
Total Pages: 92
Release: 2003
Genre: Roads
ISBN:

An evaluation of shoulder rumble strip's effectiveness in reducing off-road and rollover crashes on Montana's highway system utilized 10 years of crash data on 393 miles of Interstate Highways and 213 miles of National Highway System (NHS) and Primary Highways. Statistical analysis of crash data involved rumble strip segments and control segments without rumble strips for 3 year periods before and after implementation of shoulder rumble strips. Descriptive statistics were developed from global data sets and comparative statistics on equivalent segments produced a finding of significant crash reductions on Interstate Highways, while the effect of shoulder rumble strips on NHS and Primary Highways was uncertain due to an inadequate sample size. Analysis of contingency tables indicate that the reduction in Interstate off-road crash rates attributable to shoulder rumble strips was 14.0% with a corresponding reduction of 23.5% in severity rates. The benefit/cost ratio for construction of shoulder rumble strips on Interstate highways was 19.5. A shoulder rumble strip driver survey involving questions related to knowledge of rumble strips, frequency of encounters, reaction to exposure, and general opinions on their use was incorporated as part of the study. The survey indicated that 95% of the driving public was familiar with rumble strips and their use with the majority of drivers encountering rumble strips on every highway trip. The overwhelming majority of motorists liked the benefits that shoulder rumble strips provide.

Guidance for the Design and Application of Shoulder and Centerline Rumble Strips

Guidance for the Design and Application of Shoulder and Centerline Rumble Strips
Author: Darren J. Torbic
Publisher: Transportation Research Board
Total Pages: 284
Release: 2009
Genre: Technology & Engineering
ISBN: 0309117992

This report provides guidance for the design and application of shoulder and centerline rumble strips as an effective crash reduction measure, while minimizing adverse effects for motorcyclists, bicyclists, and nearby residents. Using the results of previous studies and the research conducted under this project, safety effectiveness estimates were developed for shoulder rumble strips on rural freeways and rural two-lane roads and for centerline rumble strips on rural and urban two-lane roads.

The Handbook of Road Safety Measures

The Handbook of Road Safety Measures
Author: Rune Elvik
Publisher: Emerald Group Publishing
Total Pages: 1137
Release: 2009-10-14
Genre: Transportation
ISBN: 1848552505

Contains summaries of the knowledge regarding the effects of 128 road safety measures. This title covers various areas of road safety including: traffic control; vehicle inspection; driver training; publicity campaigns; police enforcement; and, general policy instruments. It also covers topics such as post-accident care, and speed cameras.

Practice of Rumble Strips and Rumble Stripes

Practice of Rumble Strips and Rumble Stripes
Author: Omar Smadi
Publisher:
Total Pages: 64
Release: 2016
Genre: Rumble strips
ISBN:

This synthesis documents current practices used by states installing rumble strips and explores variations in practice in terms of design, criteria, and locations for installation, maintenance, perceived benefits, communication of benefits, and important issues. Information was acquired through a literature review, survey on current practice, and case examples. The survey also included questions specific to the state of practice for rumble stripes, which is the term used when the pavement marking lines are painted on the rumble strip in an effort to increase visibility during inclement weather conditions. The findings indicate that two-thirds of the state agencies rely on traditional methods to address the noise issue: skipping rumbles in residential areas, adjusting their depth, or not installing rumbles at all. The overwhelming majority of responding states, 83%, have developed policies or guidance to modify their rumble design practices to be sensitive to cyclists. Fewer than half the respondents have developed policies/guidance to address pavement deterioration; several agencies indicated that pavement condition is a factor on whether to install a rumble or not. The survey also showed that very few state DOTs have created public campaigns to explain that the use of rumbles improves safety so that complaints regarding noise, bicycle issues, and other are minimized.

Centerline Rumble Strips

Centerline Rumble Strips
Author: Eugene Russell
Publisher: Transportation Research Board
Total Pages: 72
Release: 2005
Genre: Road markings
ISBN: 0309070201

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 339: Centerline Rumble Strips (CLRS) examines current design, installation, configuration, dimension, and visibility issues associated with CLRS. The report addresses the need for guidance on warrants, benefits, successful practices, and concerns such as external noise and the reduced visibility of centerline striping material. Also addressed are pavement deterioration, ice buildup in the grooves, adverse impact on emergency vehicles, and the effect of CLRS on bicyclists. Particular attention was paid to available before-and-after CLRS installation crash data to document the safety aspects of CLRS and the availability of policies, guidelines, warrants, and costs regarding their use and design.

Sleep Medicine

Sleep Medicine
Author: Nick Antic
Publisher: IP Communications
Total Pages: 556
Release: 2017
Genre: Medical
ISBN: 0995388709

This textbook will describe the basic physiology of sleep and the range of sleep disorders and their consequences. Those seeking a broad understanding of sleep medicine will find the book invaluable. Chapters will convey essential concepts and principles without exhaustive detail.