Gravel Roads

Gravel Roads

Author: Ken Skorseth

Publisher:

Published: 2000

Total Pages: 112

ISBN-13:

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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.


Hands-On Science for Manitoba, Grade 7

Hands-On Science for Manitoba, Grade 7

Author: Jennifer Lawson

Publisher: Portage & Main Press

Published: 2004

Total Pages: 427

ISBN-13: 1553790251

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This teacher resource offers a detailed introduction to the Hands-On Science program, which includes its guiding principles, implementation guidelines, an overview of the science skills that grade 7 students use and develop, and a classroom assessment plan complete with record-keeping templates. This resource has four instructional units: Unit 1: Interactions within Ecosystems Unit 2: Particle Theory of Matter Unit 3: Forces and Structures Unit 4: Earth's Crust Each unit is divided into lessons which focus on specific curricular outcomes. Each lesson has materials lists activity descriptions questioning techniques activity centre and extension ideas assessment suggestions activity sheets and visuals


Guidelines for Historic Bridge Rehabilitation and Replacement

Guidelines for Historic Bridge Rehabilitation and Replacement

Author: Mary Elizabeth McCahon

Publisher: AASHTO

Published: 2008

Total Pages: 66

ISBN-13: 1560514302

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This report presents a literature search, findings of a survey on the current state of historic bridge rehabilitation or replacement decision making by state and local transportation agencies, and nationally applicable decision-making guidelines for historic bridges. The guidelines are intended to be used as the protocol for defining when rehabilitation of historic bridges can be considered prudent and feasible and when it is not based on engineering and environmental data and judgments. The guidelines include identification of various approaches to bringing historic bridges into conformance with current design and safety guidelines/standards, and the effect or implications of remedial action on historical significance. There are currently no such nationally applicable decision-making guidelines, but there are a variety of state and local processes and policies for managing historic bridges. Effective practices for the various processes inform the nationally applicable guidelines. The guidelines are in narrative and matrix format.


Guide for Pavement Friction

Guide for Pavement Friction

Author:

Publisher: AASHTO

Published: 2008

Total Pages: 87

ISBN-13: 1560514280

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This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.


Strengthening Forensic Science in the United States

Strengthening Forensic Science in the United States

Author: National Research Council

Publisher: National Academies Press

Published: 2009-07-29

Total Pages: 348

ISBN-13: 0309142393

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Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.