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Author : R. F. Benekohal
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (31 download)
Download or read book Accident Savings from Roadside Improvements on Two-lane Rural Highways written by R. F. Benekohal and published by . This book was released on 1990 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kay Fitzpatrick
Publisher : Transportation Research Board
ISBN 13 : 9780309066242
Total Pages : 176 pages
Book Rating : 4.0/5 (662 download)
Download or read book Accident Mitigation Guide for Congested Rural Two-lane Highways written by Kay Fitzpatrick and published by Transportation Research Board. This book was released on 2000 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. A. Smith
Publisher :
ISBN 13 :
Total Pages : 502 pages
Book Rating : 4.3/5 (91 download)
Download or read book Identification, Quantification and Structuring of Two-lane Rural Highway Safety Problems and Solutions. Volume II - Physical and Safety Characteristics of Two-lane Rural Highways. Final Report written by S. A. Smith and published by . This book was released on 1983 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (1 download)
Download or read book Prioritizing Improvements to Two-lane Highways written by and published by . This book was released on 1993 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Don L. Ivey
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.3/5 (91 download)
Download or read book Safety Improvements for Low Volume Rural Roads written by Don L. Ivey and published by . This book was released on 1992 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John C. Glennon
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.3/5 (91 download)
Download or read book Effectiveness of Roadside Safety Improvements written by John C. Glennon and published by . This book was released on 1974 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nicholas Michael Warrenchuk
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.:/5 (95 download)
Download or read book Safety Impacts of Edge Lines on Texas Rural Two-lane Roadways written by Nicholas Michael Warrenchuk and published by . This book was released on 2006 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roadway crashes are a detriment to our society, so improvements in roadway safety that reduce crashes are of extreme importance. Though it is clear that crashes on our highways are a drain both socially and economically, the contribution of roadway safety to overall community safety is difficult to quantify and has seen many approaches. The study first defines highway safety as a whole, and then focuses on safety improvements on rural two-lane roadways. One such improvement, highway edge lines, may be especially beneficial on such highways. A literature review indicated that edge lines may have a tendency to reduce accident experience on rural, two-lane roads and may affect vehicle speed and lateral position in the lane, which in turn may increase or decrease accident likelihood. After compilation of a database of rural, two-lane roadways in Texas, an accident analysis comparing such roadways with and without edge lines was performed. In addition to general accident frequency analysis taking into account varying traffic lane and shoulder widths and roadway curvature, factors such as accident type, intersection presence, light condition, surface condition, crash-supporting factors, severity, driver age, and driver gender were considered. Further, stationary roadside observations measuring vehicle speed and lateral position were taken during daylight and darkness on three rural, two-lane roadway test sites first without edge lines, and then again after the sites were striped with edge lines. Overall, the accident analysis showed that edge line treatments on rural two-lane roadways may reduce accident frequency, especially run-off-the road frequency, with the highest impact on curves and narrow roadways. The stationary observation analysis indicated some tendency of edge lines to increase vehicle speeds and also decrease speed variations, while moving vehicles toward the pavement edge on narrow roadways, especially at night.
Author : Charles V. Zegeer
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.3/5 (91 download)
Download or read book Safety Effects of Cross-section Design for Two-lane Roads. Volume I - Final Report written by Charles V. Zegeer and published by . This book was released on 1987 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was intended to quantify the benefits and costs resulting from lane widening, shoulder widening, shoulder surfacing, sideslope flattening, and roadside improvements. Detailed traffic, accident, and roadway data were collected on 4,951 miles of two lane roads in seven states. An accident predictive model and statistical tests were used to determine expected accident reductions related to various geometric improvements. Construction cost data from several states were used to develop a cost model for numerous types of roadway and roadside projects. This volume contains the final report and four appendixes. The final report contains detailed information on data collection and data analysis and conclusions and recommendations. The appendixes contain detailed information on the literature review, photographs used for the rural and urban roadside hazard scales, and economic analysis inputs.
Author : Douglas W. Harwood
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (946 download)
Download or read book Prediction of the Expected Safety Performance of Rural Two-lane Highways written by Douglas W. Harwood and published by . This book was released on 2000 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an algorithm for predicting the safety performance of a rural two-lane highway. The accident prediction algorithm consists of base models and accident modification factors for both roadway segments and at-grade intersections on rural two-lane highways. The base models provide an estimate of the safety performance of a roadway or intersection for a set of assumed nominal or base conditions. The accident modification factors adjust the base model predictions to account for the effects on safety for roadway segments of lane width, shoulder width, shoulder type, horizontal curves, grades, driveway density, two-way left-turn lanes, passing lanes, roadside design and the effects on safety for at-grade intersections of skew angle, traffic control, exclusive left- and right-turn lanes, sight distance, and driveways. The accident prediction algorithm is intended for application by highway agencies to estimate the safety performance of an existing or proposed roadway. The algorithm can be used to compare the anticipated safety performance of two or more geometric alternatives for a proposed highway improvement. The accident prediction algorithm includes a calibration procedure that can be used to adapt the predicted results to the safety conditions encountered by any particular highway agency on rural two-lane highways. The algorithm also includes an Empirical Bayes procedure that can be applied to utilize the safety predictions provided by the algorithm together with actual site-specific accident history data.
Author : J. L. Gattis
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (555 download)
Download or read book Incremental Improvements to Rural Two-lane Highways written by J. L. Gattis and published by . This book was released on 2003 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to examine certain aspects of passing lane operations, with a focus on 3-lane alternate passing designs in Arkansas. Aspects examined included effects of passing lane length on speed, effects of passing lane length on platooning, effects of passing lane length on passing, and crash histories of transitions and passing lanes. Five sets of field data were collected at four rural sites. Speed patterns were found to vary among sites. Platooning decreased after entering the passing lane, and eventually stabilized. Passing activity was greatest at the beginning of the segments. Five years of crash data were utilized. Even though the passing lane segment volumes were higher than the state average rural two-lane road volume, the passing lane crash rates were lower than the statewide average crash rate on rural two-lane roads. Sample size restrictions limited the information found about transition zones. The crash rates at the entering taper were less than at the ending taper.
Author : Charles V. Zegeer
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.3/5 (91 download)
Download or read book Safety Improvements on Horizontal Curves for Two-lane Rural Roads written by Charles V. Zegeer and published by . This book was released on 1990 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 574 pages
Book Rating : 4.M/5 ( download)
Download or read book Transportation... Weekly Government Abstracts written by and published by . This book was released on 1991 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexei R. Tsyganov
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (1 download)
Download or read book Safety Impact of Edge Lines on Rural Two-lane Highways written by Alexei R. Tsyganov and published by . This book was released on 2005 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ruediger Lamm
Publisher : Witpress
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.3/5 (91 download)
Download or read book How to Make Two-lane Rural Roads Safer written by Ruediger Lamm and published by Witpress. This book was released on 2007 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: When accidents happen, drivers are blamed for the mishap. When drivers consistently fail at certain locations, it then becomes obvious that the problem lies not with them, but with the geometry of the road itself. Because accidents are not evenly distributed throughout the road network, locations with high accident rates are a clear indication that there are other factors involved, besides driver error, which are characterized by the road itself. In most countries, two-lane rural roads make up about 90 percent of rural networks and they account for over 60 percent of highway fatalities worldwide, approximately 500,000 people per year. The methodology described in this book will support the achievement of quantified measures of: design consistency; operating speed consistency; and, driving dynamic consistency. The safety criteria are then combined into an overall safety module for a simplified general overview of the safety evaluation process. The authors also encourage the coordination of safety concerns with important economic, environmental and aesthetic considerations. This book will be an invaluable aid to educators, students, consultants, highway engineers and administrators, as well as scientists in the fields of highway design and traffic safety engineering.
Author : Donald L. Woods
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.3/5 (91 download)
Download or read book Guidelines for Using Wide-paved Shoulders on Low-volume Two-lane Rural Highways Based on Benefit/cost Analysis written by Donald L. Woods and published by . This book was released on 1989 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rahim F. Benekohal
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (641 download)
Download or read book Comparison of Safety Effects of Roadside Versus Road Improvements on Two-lane Rural Highways written by Rahim F. Benekohal and published by . This book was released on 1991 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles V. Zegeer
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.3/5 (91 download)
Download or read book Safety Cost-effectiveness of Incremental Changes in Cross-section Design written by Charles V. Zegeer and published by . This book was released on 1987 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide presents information for estimating the costs and safety benefits which would be expected due to various improvements on specific sections of rural, two-lane roads. Such improvements covered in this guide include lane widening, shoulder widening, shoulder surfacing, sideslope flattening, and roadside improvements. This guide will be useful to those involved with the design of 3R-type projects, particularly for improvement projects which will be constructed on existing vertical and horizontal alignment and within the existing right-of-way. The accident relationships with roadway geometrics and cost data contained in this guide resulted from research conducted for the Federal Highway Administration. FHWA research report FHWA/RD-87/008 entitled "Safety Effects of Cross-Section Design for Two-Lane Roads, Volume I, Final Report" contains the major results and conclusions of the study. FHWA research report number FHWA/RD-87/009 subtitled "Volume II, Appendixes" contains details on the data base and the data analysis
