This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Without a first class system of interstate highways, life in America would be far different -- it would be more risky, less prosperous, & lacking in the efficiency & comfort that Americans now enjoy & take for granted. The Dwight D. Eisenhower System of Interstate & Defense Highways, in place & celebrating its 40th anniversary, must surely be the best investment a nation ever made. Consider this: it has saved the lives of at least 187,000 people; it has prevented injuries to nearly 12 million people; it has returned more that $6 in economic productivity for each $1 it cost, & much more. Photos. Charts & tables.

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.

This comprehensive guide provides the training materials for Traffic Incident Management (TIM) Responders four (4) hour course with three main goals including Responder safety; Safe, quick clearance; and Prompt, reliable, interoperable communications This Train-the Trainer- Guide is aimed at all responder disciplines including law enforcement, fire and rescue, emergency medical services (EMS), towing operators and recovery units, highway/transportation agencies at the Federal and State levels, and Communication centers to include 9-1-1 and transportation management centers (TMCs). Each lesson includes an objective plus offers black and white photos to easily identify with the program lessons that follow to address the incidents as a method to train the students. Emergency management personnel, fire and rescue teams, and law enforcement may be interested in this guide as a desk reference. Additionally, students hoping to become certified within these employment areas may want to familiarize their knowledge with these vital lessons prior to beginning on-the-job duties. Other related products that may be of interest include: Code of Federal Regulations, Title 49, Transportation, Pt. 572-999, Revised as of October 1, 2015 can be found here: https://bookstore.gpo.gov/products/sku/869-082-00224-7?ctid=199 Traffic Incident Management in Hazardous Materials Spills in Incident Clearance can be found here: https://bookstore.gpo.gov/products/sku/050-001-00345-7?ctid=199 Public Roads bi-monthly print magazine subscription can be found here: https://bookstore.gpo.gov/products/sku/750-005-00000-4?ctid=