Author: Ahmed Shawky Abdel-Rahim Publisher: ISBN: Category : Roads Languages : en Pages : 31
Book Description
"This guide is limited to providing assistance in the following four engineering-based categories only: offtracking, structural safety of bridges and culvert, pavement and gravel road conditions, and crash data and safety evaluation."--Page 7.
Author: Ken Skorseth Publisher: ISBN: Category : Gravel roads Languages : en Pages : 112
Book Description
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: Institute of Medicine Publisher: National Academies Press ISBN: 0309316278 Category : Medical Languages : en Pages : 341
Book Description
Tobacco use by adolescents and young adults poses serious concerns. Nearly all adults who have ever smoked daily first tried a cigarette before 26 years of age. Current cigarette use among adults is highest among persons aged 21 to 25 years. The parts of the brain most responsible for cognitive and psychosocial maturity continue to develop and change through young adulthood, and adolescent brains are uniquely vulnerable to the effects of nicotine. At the request of the U.S. Food and Drug Administration, Public Health Implications of Raising the Minimum Age of Legal Access to Tobacco Products considers the likely public health impact of raising the minimum age for purchasing tobacco products. The report reviews the existing literature on tobacco use patterns, developmental biology and psychology, health effects of tobacco use, and the current landscape regarding youth access laws, including minimum age laws and their enforcement. Based on this literature, the report makes conclusions about the likely effect of raising the minimum age to 19, 21, and 25 years on tobacco use initiation. The report also quantifies the accompanying public health outcomes based on findings from two tobacco use simulation models. According to the report, raising the minimum age of legal access to tobacco products, particularly to ages 21 and 25, will lead to substantial reductions in tobacco use, improve the health of Americans across the lifespan, and save lives. Public Health Implications of Raising the Minimum Age of Legal Access to Tobacco Products will be a valuable reference for federal policy makers and state and local health departments and legislators.
Author: California Department Of Public Works Publisher: Forgotten Books ISBN: 9781396624018 Category : Reference Languages : en Pages : 904
Book Description
Excerpt from California Highways and Public Works: January-February 1964 Editors are invited to use information contained herein and to request prints at any black and white photographs. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Ahmed Shawky Abdel-Rahim
Author: Idaho. Board of Highway Directors
Author: Idaho. Department of Highways
Author: Idaho. Department of Highways
Author: Idaho. Department of Highways
Author: Idaho. Department of Highways
Author: Ken Skorseth
Author: Institute of Medicine
Author: National Research Council (U.S.). Transportation Research Board
Author: California Department Of Public Works