Download or read book Evaluation of Treated Wooden Sign Posts written by Steve Blackwell and published by . This book was released on 1979 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: In view of the Virginia Department of Highways and Transportation's need to conserve dwindling revenues, the Traffic Research Advisory Committee recommended that the feasibility of using unpainted, treated wooden sign posts instead of painted posts be investigated. With the subsequent change to the use of unpainted, treated wooden sign posts, the Advisory Committee recommended that the evaluation be extended to compare the target values of painted and unpainted posts. In the evaluation, special attention was focused on residues formed from the chemicals used to treat the post and adverse effects they might have on the legibility and general appearance of the sign panel. The target values of a painted and an unpainted post were observed under different conditions. After 36 months, the retroreflective characteristics of the sign panel mounted on the unpainted, treated wooden sign post had not changed abnormally or significantly. Also no streaking on the sign panel or twisting of the sign post was noted. A comparison of target values of the posts showed the painted post to be more visible at times; the difference was minimal and can be made inconsequential by using reflectors on the posts. The Department's decision to use unpainted, treated wooden sign posts was reconfirmed by the results of the evaluation.
Download or read book Evaluation of Wood Species and Preservatives for WisDOT Sign Posts written by and published by . This book was released on 2013 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Wood Species and Preservatives for Use in Wisconsin Highway Sign Posts written by Forest Products Laboratory and published by CreateSpace. This book was released on 2015-06-26 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wisconsin Department of Transportation (WisDOT) administers approximately 11,800 miles (18,990 km) of state highways (WisDOT 2014). WisDOT uses preservative-treated wood posts for much of the signage along these highways because wood is relatively inexpensive, easy to install, and has the necessary strength properties to tolerate typical Wisconsin wind loads. Although WisDOT's experi-ence with wood sign posts has been generally positive, there are some areas of concern, as well as potential opportunities for diversifying the wood species and preservatives used. WisDOT and the USDA Forest Products Laboratory con-ducted a comprehensive literature review to examine those concerns and opportunities.
Download or read book WisDOT Research Program written by and published by . This book was released on 2013 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Stiffness of a Roof System Made of Glued laminated Beams and Heavy Timber Decking written by Fred Werren and published by . This book was released on 1961 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Wood Species and Preservatives for Use in Wisconsin Highway Sign Posts written by Stan T. Lebow and published by . This book was released on 2014 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wisconsin Department of Transportation (WisDOT) uses wooden posts to support many types of signs along state highways. WisDOT currently uses red pine or Southern Pine posts treated with chromated copper arsenate (CCA) and has generally experienced satisfactory performance and service life. However, there are some areas of concern, as well as potential opportunities for diversifying the wood species and preservatives used. Warp is sometimes a problem with the current pine posts, and increased use of locally sourced wood species for the sign posts could decrease transportation costs and potentially benefit Wisconsin industries. Although CCA is a highly effective preservative, it may not be the optimum treatment for alternative wood species. This study reviewed the characteristics of alternative wood species and wood preservatives and evaluated their potential for use in Wisconsin highway sign posts. The evaluation concluded that WisDOT's current practice of using red pine or Southern Pine posts treated with CCA is logical and may be the optimum combination of wood species and preservatives currently available. Red pine and Southern Pine are readily available and relatively strong compared with many other softwood species. Red pine is also an important commercial resource for Wisconsin and the upper Midwest. Other Wisconsin species to consider include eastern white pine and soft maples. However, strength may be a concern with eastern white pine, whereas cost may be a concern with soft maples. CCA is an effective preservative, readily treats red pine and Southern Pine, and is compatible with aluminum signs. Copper naphthenate in oil solvent appears to be one of the most logical alternatives to CCA, and would be a strong candidate for treatment of hardwoods. Copper naphthenate is non-corrosive to aluminum and would avoid warp associated with re-drying after treatment with water-based preservatives. WisDOT may want to consider purchasing a small volume of copper naphthenate-treated posts to evaluate the handling characteristics of this oil-based preservative.
Download or read book World Survey of Current Research and Development on Roads and Road Transport written by International Road Federation and published by . This book was released on 1980 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Big Sandy Resource Area ORV Implementation Plan B1 Environmental Assessment EA B2 Notice of Designation Decision ROD written by and published by . This book was released on 1983 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Method to Evaluate the Technical and Environmental Feasibility of Particular Pollution Prevention Opportunities written by G. Michael Fitch and published by . This book was released on 2000 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Virginia Department of Transportation (VDOT) is obligated by House Joint Resolution 453 passed in 1995 by Virginia's General Assembly to develop and implement a pollution prevention (P2) program. The primary purpose of this study was to develop a protocol whereby VDOT could quickly and economically evaluate the feasibility of implementing P2 opportunities identified as requiring additional study. In addition, three P2 opportunities, the use of aqueous parts washers, recycled plastic lumber, and lead acid battery extenders, were evaluated using the developed protocol. Evaluation criteria taken from various literature sources were used to develop the protocol. After using the protocol to evaluate the three P2 opportunities in question, the researcher concluded that the protocol will be a useful tool for VDOT to use when determining what opportunities to implement as part of its agency-wide Pollution Prevention Plan. With regard to the P2 opportunities evaluated, the researcher concluded that (1) aqueous parts washers were comparable or superior to solvent-based washers economically, technically, and environmentally; (2) recycled plastic lumber suffers from quality control problems, making it impractical to use for signposts; and (3) although lead acid battery extenders show great promise, little technical information is available to substantiate vendor claims.
Download or read book An Annotated Bibliography of Virginia Transportation Research Council Writings July 1966 June 1989 written by Harry T. Craft and published by . This book was released on 1991 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of Preservative treated Wood in a Wetland Boardwalk written by and published by . This book was released on 2000 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Best Management Practices for Environmental Issues Related to Highway and Street Maintenance written by William Albert Hyman and published by Transportation Research Board. This book was released on 1999 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis report will be of interest to state, local, and federal agency environmental and maintenance administrators, directors, supervisors, engineers, and scientists. It describes current best management practices (BMPs) for environmental issues related to road and street maintenance. The synthesis documents relevant background and recent information with regard to management practices that can help protect, preserve, or enhance the environment while at the same time allow road maintenance organizations to carry out their fundamental mission of maintenance and repair in a cost-effective manner. Information for the synthesis was collected by surveying U.S. and Canadian state and local transportation agencies and by conducting a literature search using domestic sources. This report of the Transportation Research Board describes BMPs consisting of broad management approaches applicable to the entire maintenance program or to more than one program area. In addition, BMPs for specific maintenance activities or groups of maintenance activities are included. Finally, BMPs concerning specific environmental issues are discussed.
Download or read book Nondestructive Methods of Evaluating Quality of Wood in Preservative treated Piles written by and published by . This book was released on 2000 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stress-wave-based nondestructive evaluation methods were used to evaluate the potential quality and modulus of elasticity (MOE) of wood in used preservative-treated Douglas-fir and southern pine piles. Stress wave measurements were conducted on each pile section. Stress wave propagation speeds in the piles were then obtained to estimate their MOE. This was followed by a sequence of tests conducted on octagon-shaped cants, on boards, and on small, clear wood specimens obtained from the piles. Statistical regression analyses revealed a strong correlation between the stress-wave-based MOE (MOEd) of piles and octagons and the corresponding flexural properties of boards and small, clear wood specimens determined by transverse vibration and static bending techniques, respectively. The results also indicated that used preservative-treated wood piles still contain material that has potential for use in exterior structural applications.
Download or read book Index of Specifications and Standards written by and published by . This book was released on with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1978 with total page 1326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by and published by . This book was released on 1961 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lumber World Review written by and published by . This book was released on 1925 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt:
