Download or read book Roadway Lighting on Secondary Roads in Iowa written by Robert Lowell Carstens and published by . This book was released on 1984 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: There was no evidence from this research that the number of accidents is reduced by the installation of destination lighting. Hence, the installation of destination lighting cannot be recommended based on safety benefits.

Download or read book Safety Effects of Destination Lighting at Secondary Road Intersections in Iowa written by Larry D. Berns and published by . This book was released on 1984 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Roadway Lighting and Safety written by Omar Smadi and published by . This book was released on 2011 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Phase II project follows a previous project titled Strategies to Address Nighttime Crashes at Rural, Unsignalized Intersections. Based on the results of the previous study, the Iowa Highway Research Board (IHRB) indicated interest in pursuing further research to address the quality of lighting, rather than just the presence of light, with respect to safety. The research team supplemented the literature review from the previous study, specifically addressing lighting level in terms of measurement, the relationship between light levels and safety, and lamp durability and efficiency. The Center for Transportation Research and Education (CTRE) teamed with a national research leader in roadway lighting, Virginia Tech Transportation Institute (VTTI) to collect the data. An integral instrument to the data collection efforts was the creation of the Roadway Monitoring System (RMS). The RMS allowed the research team to collect lighting data and approach information for each rural intersection identified in the previous phase. After data cleanup, the final data set contained illuminance data for 101 lighted intersections (of 137 lighted intersections in the first study). Data analysis included a robust statistical analysis based on Bayesian techniques. Average illuminance, average glare, and average uniformity ratio values were used to classify quality of lighting at the intersections.

Download or read book Iowa Documents written by and published by . This book was released on 1988 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Highway Lighting written by Floyd W. Christofferson and published by . This book was released on 1976 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research initiated to evaluate a new lowering device for tower luminaires and new concept of tower luminaire light distibution.

Download or read book Strategies to Address Nighttime Crashes at Rural Unsignalized Intersections written by and published by . This book was released on 2008 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Citizens request the installation of roadway lighting in their communities based on several motivations, including the experience or perception that lighting improves traffic safety and reduces crime, while also providing a tangible benefit of taxpayer dollars at work. Roadway authority staff fully appreciate these citizen concerns; however, roadway lighting is expensive to install, supply energy to, and maintain in perpetuity. The installation of roadway lighting is only one of a number of strategies agencies have to address nighttime crash concerns. This research assists local agencies in deciding when, where, and how much rural intersection lighting to provide.

Download or read book Rural Local Roads written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1949 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Roadway Lighting Handbook written by United States. Federal Highway Administration. Office of Traffic Operations and published by . This book was released on 1978 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Roadway Lighting Design Guide written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2005 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide replaces the 1984 publication entitled An Informational Guide for Roadway Lighting. It has been revised and brought up to date to reflect current practices in roadway lighting. The guide provides a general overview of lighting systems from the point of view of the transportation departments and recommends minimum levels of quality. The guide incorporates the illuminance and luminance design methods, but does not include the small target visibility (STV) method.

Download or read book Flexible Pavement Design in Iowa written by Don E. McLean and published by . This book was released on 1960 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report Highway Research and Development in Iowa for the Fiscal Year Ending June 30 written by and published by . This book was released on 1977 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Municipal and County Engineering written by and published by . This book was released on 1923 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 76 , 83-93 include Reference and data section for 1929 , 1936-46 (1929- called Water works and sewerage data section)

Download or read book Rural transportation problems as they relate to agriculture written by United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry. Subcommittee on Agricultural Production, Marketing, and Stabilization of Prices and published by . This book was released on 1979 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Automotive Abstracts written by and published by . This book was released on 1925 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Code of Iowa written by Iowa and published by . This book was released on 1997 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Informational Guide for Roadway Lighting written by AASTO Operating Subcommittees on Design and Traffic Engineering Joint Task Force for Highway Lighting and published by . This book was released on 1976 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: