Author: Eugene C. Calvert
Publisher:
ISBN:
Category : Dirt roads
Languages : en
Pages : 66

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Author: Raymond Craig Caldwell
Publisher:
ISBN:
Category : Dirt roads
Languages : en
Pages : 160

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Author:
Publisher:
ISBN:
Category : Air travel
Languages : en
Pages : 1140

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Modern societies have developed excellent practices and procedures for improving safety. Most of these efforts have focused on safety issues on high volume paved roads. However, the situation on unpaved roads is not as encouraging. Scarce resources have governments in their efforts to provide safer roadway environments on these facilities. Due to the increased level of litigation arising from claims of negligence, it is no longer acceptable to do nothing because of limited resources. This paper provides a realistic approach to the dilemma faced by local officials responsible for unpaved roads. It is based on research conducted since 1994 in defining a new set of criteria to assist local governments in improving unpaved road safety. Worldwide, safety improvements are needed on low volume unpaved roads. This paper also presents approaches used to improve local rural unpaved road safety. Safety improvements include definable benefits for the real world; benefits that are practical, needed, and acceptable. The examples presented in this paper serve as guidelines to define, analyze, and solve existing safety problems. Although techniques to improve local unpaved road safety use proven technology, the acceptance of the approach reported in this paper will advance the state-of-the-art by developing into a format which can be used by real world practitioners. Case study surveys of practitioners, users and safety experts are presented to help define the proposed safety improvement program. A Delphi procedure was used to document the final analysis approach. For the covering abstract of this conference see IRRD number 872978.

Author: Ken Skorseth
Publisher:
ISBN:
Category : Gravel roads
Languages : en
Pages : 112

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The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.

Author: Don L. Ivey
Publisher:
ISBN:
Category : Low-volume roads
Languages : en
Pages : 88

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Author: Raymond Craig Caldwell
Publisher:
ISBN:
Category : Dirt roads
Languages : en
Pages : 256

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Author: Charles V. Zegeer
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 104

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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

Author: Schwartz, David J.
Publisher:
ISBN:
Category : Low-volume roads
Languages : en
Pages : 62

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In order to determine the adequacy with which safety problems on low-volume rural roadways were addressed by the four states of Federal Region VII (Iowa, Kansas, Missouri, and Nebraska), a review was made of the states' safety policies. After reviewing literature dealing with the identification of hazardous locations, evaluation methodologies, and system-wide safety improvements, a survey of the states' safety policies was conducted. An official from each state was questioned about the various aspects and procedures dealing with safety improvements. After analyzing and comparing the remarkably diverse policies, recommendations were made in the form of a model safety program. This program included special modifications that would help remediate hazards on low-volume rural roadways. Especially encouraged is a system-wide approach to improvement which would cover all parts of the highway system, not just urban and high-volume roadways.

Author:
Publisher:
ISBN:
Category : Downsizing of organizations
Languages : en
Pages : 244

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