Download or read book Design Guide for Secondary Road Pavements in Virginia written by Nari K. Vaswani and published by . This book was released on 1973 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: A design method for secondary roads (based on AASHO Road Test results and experience in Virginia) is described which consists of two parts: the evaluation of the soil support value of the subgrade, the thickness equivalencies of the paving materials, and the traffic in terms of vehicles per planning actions. The References are classified under of the required thickness index of the pavement and the selection of the materials and layer thicknesses to meet the design thickness index. Figures illustrate soil support values and soil resilience factors. The thickness equivalency values for materials used in secondary roads are tabulated as well as slab and bare thickness for different traffic categories. A nomograph correlating the soil support value, traffic and thickness index is presented.
Download or read book Pavement Design Guide for Subdivision and Secondary Roads in Virginia written by and published by . This book was released on 2018 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Design Guide for Subdivision Pavements in Virginia written by Nari K. Vaswani and published by . This book was released on 1973 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design method for secondary roads and that for subdivision roads are based on AASHO Road Test Results and Virginia's design experience. For flexible pavements, the methods are divided into two parts: (1) the evaluation of the soil support value of the subgrade, the thickness equivalences of the paving materials, and the traffic in terms of vehicles per day; and (2) design considerations such as the determination of the required thickness index of the pavement and the selection of the materials and layer thicknesses to meet the design thickness index. For portland cement concrete pavements, they are based on traffic only.
Download or read book Gravel Roads written by Ken Skorseth and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Design Method for Secondary Road Flexible Pavements in Virginia written by Nari K. Vaswani and published by . This book was released on 1972 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design method for secondary roads is based on AASHO Road Test Results and Virginia's design experience. It is divided into two parts. (1) the evaluation of the soil support value of the subgrade, the thickness equivalencies of the paving materials, and the traffic in terms of vehicles per day; and (2) design considerations such as the determination of the required thickness index of the pavement and the selection of the materials and layer thicknesses to meet the design thickness index.
Download or read book Flexible Pavement Design Guide for Primary and Interstate Roads in Virginia written by Virginia. Department of Transportation. Materials Division and published by . This book was released on 1995 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AASHTO Guide for Design of Pavement Structures 1993 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.
Download or read book Design of Secondary and Subdivision Roads in Virginia Based on Thickness Equivalency Values written by N. K. Vaswani and published by . This book was released on 1971 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of secondary and subdivision roads in Virginia is based on the design charts recommended by the Highway Department. In view of recently gained knowledge of materials and design techniques, the Pavement Research Advisory Committee requested that a new design procedure for these roads be developed. In the proposed design developed, the soil support value of the subgrade has been evaluated in terms of soil resiliency and CBR values. Soil resiliency values for any part of Virginia are given in the report or could be easily determined. The design is based on average daily traffic with 0 to 5 percent trucks. Provision has been made in the design for increased truck traffic. The proposed design method is based on the AASHO Road Test Results (1962) now being used in many states, including Virginia. This design was arrived at after personal interviews with the district materials engineers and the evaluation of the designs recommended by them during the last twelve months. In essence, the same pavement designs could be obtained by using the proposed method or the present design charts. However, this method provides the designer more choices in the uses of materials and thus may lead to economies.
Download or read book Design of Flexible Pavements in Virginia Using AASHO Road Test Results by N K Vaswani written by Nari K. Vaswani and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Pavement Design in Virginia Based on Layer Deflections Subgrade and Its Moisture Content written by Nari K. Vaswani and published by . This book was released on 1970 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this investigation, the optimum structural strength contributed by a material to the overall strength of the pavement was studied for cases applicable to Virginia. The variables were (a) the modulus of elasticity or the thickness equivalency of the material, (b) the thickness of the material in the layer, (c) the location of the material with respect to other layers containing stronger or weaker materials and in varying thicknesses, and (d) the effect of the total pavement thickness and the depth of the material from the top of the pavement. The investigation consisted of two parts: (a) a study of the thickness equivalencies of the materials on interstate, primary, secondary and subdivision roads in Virginia, and (b) a model study. The evaluation of the highway system was quantitative, while that of the model study was qualitative only. This investigation showed that the structural strength of a pavement is decreased when a weaker layer is placed over a stronger layer or when a weaker layer is sandwiched between two strong layers. The investigation also showed that when the bottom of the top layer does not bend, the stress distribution is bulb type; and when the bottom bends, the stress distribution is fan type. Each case would therefore need a different mathematical treatment for design.
Download or read book VDH T Guide for Secondary Road Improvements written by Virginia. Department of Highways and Transportation and published by . This book was released on 1977* with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanistic empirical Pavement Design Guide written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Subdrainage Design written by Lyle K. Moulton and published by . This book was released on 1980 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economics of Design Standards for Low volume Rural Roads written by Clarkson Hill Oglesby and published by . This book was released on 1969 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: he objective of this study is to examine prevailing rural design standards to determine their economic justification. This would evaluate in depth the cost of some of the most significant design practices (for example, roadway and shoulder width and surfacing type). Resulting user benefits, such as operating, accident and time savings would be weighed against the cost of individual features. In addition to the analysis of the user-benefit relationships, the economic and social consequences to local residents, businesses and communities should be studied and a suitable means of including them in the reckoning of warranted levels of improvement should be found.
Download or read book Superpave Mix Design written by Asphalt Institute and published by . This book was released on 2001-01-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Virginia Register of Regulations written by and published by . This book was released on 2004 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
