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| Author | : American Association of State Highway and Transportation Officials |
| Publisher | : AASHTO |
| Total Pages | : 275 |
| Release | : 2009 |
| Genre | : Social Science |
| ISBN | : 1560514167 |
| Author | : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety |
| Publisher | : |
| Total Pages | : 560 |
| Release | : 1989 |
| Genre | : Roads |
| ISBN | : |
| Author | : William F. Williams (Transportation engineer) |
| Publisher | : |
| Total Pages | : 115 |
| Release | : 2019 |
| Genre | : Bridge railings |
| ISBN | : |
The purpose of the tests reported herein was to assess the performance of a new, taller Alaska Multi-State 2-Tube Bridge Rail (re-designated as 2019 MASH 2-Tube Bridge Rail) according to the safety-performance evaluation guidelines included in the American Association of State Highway and Transportation Officials (AASHTO), Manual for Assessing Safety Hardware (MASH), Second Edition 2016. The crash tests performed were in accordance with MASH Test Level 4 (TL-4), which involves three tests on the 2019 MASH 2-Tube Bridge Rail. This report provides details of the 2019 MASH 2-Tube Bridge Rail, detailed documentation of the crash tests and results, and an assessment of the performance of the 2019 MASH 2-Tube Bridge Rail for MASH TL-4 evaluation criteria.
| Author | : |
| Publisher | : AASHTO |
| Total Pages | : 142 |
| Release | : 2004 |
| Genre | : CD-ROMS. |
| ISBN | : 1560512717 |
| Author | : Chiara Silvestri Dobrovolny |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2022 |
| Genre | : Concrete |
| ISBN | : |
The purpose of the tests reported herein was to assess the performance of the damaged portable concrete barrier according to the safety-performance evaluation guidelines included in the American Association of State Highway and Transportation Officials Manual for Assessing Safety Hardware (MASH), Second Edition. The crash tests were performed in accordance with MASH Test 3-11, which involves a 2270P vehicle weighing 5000 lb impacting the longitudinal barrier while traveling at 62 mi/h and 25 degrees. This report provides details on the damaged portable concrete barriers, the crash tests and results, and the performance assessment of the damaged portable concrete barriers for MASH Test Level 3 (TL-3) longitudinal barrier evaluation criteria. The damaged portable concrete barriers met the performance criteria for MASH TL-3 longitudinal barriers.
| Author | : Wai-Fah Chen |
| Publisher | : CRC Press |
| Total Pages | : 754 |
| Release | : 2014-01-24 |
| Genre | : Technology & Engineering |
| ISBN | : 1439852219 |
Over 140 experts, 14 countries, and 89 chapters are represented in the second edition of the Bridge Engineering Handbook. This extensive collection highlights bridge engineering specimens from around the world, contains detailed information on bridge engineering, and thoroughly explains the concepts and practical applications surrounding the subject. Published in five books: Fundamentals, Superstructure Design, Substructure Design, Seismic Design, and Construction and Maintenance, this new edition provides numerous worked-out examples that give readers step-by-step design procedures, includes contributions by leading experts from around the world in their respective areas of bridge engineering, contains 26 completely new chapters, and updates most other chapters. It offers design concepts, specifications, and practice, as well as the various types of bridges. The text includes over 2,500 tables, charts, illustrations, and photos. The book covers new, innovative and traditional methods and practices; explores rehabilitation, retrofit, and maintenance; and examines seismic design and building materials. The second book, Superstructure Design, contains 19 chapters, and covers information on how to design all types of bridges. What’s New in the Second Edition: Includes two new chapters: Extradosed Bridges and Stress Ribbon Pedestrian Bridges Updates the Prestressed Concrete Girder Bridges chapter and rewrites it as two chapters: Precast/Pretensioned Concrete Girder Bridges and Cast-In-Place Post-Tensioned Prestressed Concrete Girder Bridges Expands the chapter on Bridge Decks and Approach Slabs and divides it into two chapters: Concrete Decks and Approach Slabs Rewrites seven chapters: Segmental Concrete Bridges, Composite Steel I-Girder Bridges, Composite Steel Box Girder Bridges, Arch Bridges, Cable-Stayed Bridges, Orthotropic Steel Decks, and Railings This text is an ideal reference for practicing bridge engineers and consultants (design, construction, maintenance), and can also be used as a reference for students in bridge engineering courses.
| Author | : Daniel E. Della-Giustina |
| Publisher | : CRC Press |
| Total Pages | : 189 |
| Release | : 2012-05-04 |
| Genre | : Technology & Engineering |
| ISBN | : 1439895074 |
In the almost ten years since the publication of the first edition of Motor Fleet Safety and Security Management, the availability of new methods of transportation has made travel faster, and consequently, safety and security have become more important and more complex. Businesses must now become proactive in their own security and planning for emergencies. This second edition of a bestselling resource provides a complete understanding of how to develop and manage a comprehensive motor fleet safety and instructional program. It presents the underlying concepts, basic techniques, and principles of motor fleet safety and security management. New, Revised, and Expanded Topics in the Second Edition: Elements of a fleet safety program Accident prevention Consideration for small-fleet driver selection, training, instruction, and supervision Vehicle inspection How to organize accident data Job safety analysis (JSA) meetings for commercial drivers Fleet transportation publicity School bus safety Shipping and storage of hazardous materials Security in transportation Model of a motor fleet transportation program designed to assist in the implementation of a program To achieve optimum safety, everyone involved in the transportation system should be adequately trained, supervised, and monitored. Proper data and incident reports must be maintained to identify trends and problem areas. Keeping the trademark style that made the previous edition so popular, the author addresses the critical steps for successful driver selection, training, instruction, and supervision. He provides you with the foundation you need to combat common problems and manage your motor fleet transportation system.
| Author | : Nauman Mansoor Sheikh |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2022 |
| Genre | : Automobiles |
| ISBN | : |
This report presents the development and crash testing of a surface-mounted median guardrail on concrete. The research team developed several preliminary design concepts of the median guardrail. One of these was selected by the Texas Department of Transportation for further development through finite element simulation analysis and full-scale crash testing. The safety performance of the final design of the surface-mounted median guardrail was evaluated in accordance with the guidelines included in the American Association of State Highway and Transportation Officials Manual for Assessing Safety Hardware (MASH), Second Edition (1). The design was evaluated for Test Level 3 (TL-3) of MASH, for which the following two crash tests were performed: 1. MASH Test 3-10: An 1100C small passenger sedan weighing 2420 lb., impacting the median guardrail while traveling at a speed and angle of 62 mi/h and 25 degrees. 2. MASH Test 3-11: A 2270P pickup truck weighing 5000 lb., impacting the median guardrail while traveling at a speed and angle of 62 mi/h and 25 degrees. The new surface-mounted median guardrail design passed the MASH evaluation criteria for both tests. This report provides details on the surface-mounted median guardrail, the crash tests and results, and the performance assessment of the median guardrail using the evaluation criteria of MASH TL-3 for longitudinal barriers.
| Author | : Amin Akhnoukh |
| Publisher | : Springer Nature |
| Total Pages | : 1211 |
| Release | : 2022-04-21 |
| Genre | : Technology & Engineering |
| ISBN | : 3030798011 |
This volume focuses on recent advances in the planning, design, construction and management of new and existing roads with a particular focus on safety, sustainability and resilience. It discusses field experience through case studies and pilots presented by leading international subject-matter specialists. Chapters were selected from the 18th International Road Federation World Meeting & Exhibition, Dubai 2021.
| Author | : Karla A. Lechtenberg |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2020 |
| Genre | : Roads |
| ISBN | : |
A research study was conducted to develop and evaluate a steel-post, trailing-end, anchorage system for the Midwest Guardrail System (MGS) as an alternative to the existing wood-post, trailing-end anchorage system with BCT posts. Following the design and development of the steel-post, trailing-end anchorage system for the MGS, two full-scale crash tests, test nos. SPTA-1 and SPTA-2, were performed according to the American Association of State Highway and Transportation Officials' (AASHTO) Manual for Assessing Safety Hardware, Second Edition (MASH 2016) test designation nos. 3-37a and 3-37b, respectively. The steel-post, trailing-end anchorage system included the following components: two breakaway steel posts, two steel foundation tubes, a steel compression ground line strut, one steel anchor cable, and a T-shaped, breaker bar attached to the end anchor post. In test no. SPTA-1, the 5,074-lb (2,302-kg) pickup truck impacted the MGS at a speed of 62.1 mph (99.9 km/h) and an angle of 25.0 degrees and was captured and redirected. The vehicle remained upright and stable throughout the test, and all vehicle decelerations and occupant compartment deformations were within the allowable MASH 2016 limits. In test no. SPTA-2, the 2,429-lb (1,102-kg) small car impacted the system at a speed of 63.3 mph (101.9 km/h) and an angle of 25.2 degrees near the anchorage system. The vehicle gated through the system but remained upright and stable throughout the test, and all vehicle decelerations and occupant compartment deformations were within the allowable MASH 2016 limits. The MGS with the steel-post, trailing-end anchorage system performed adequately. Therefore, test nos. SPTA-1 and SPTA-2 were determined to satisfy the safety performance criteria for MASH 2016 test designation nos. 3-37a and 3-37b, respectively. Recommendations were provided for the installation of steel-post, trailing-end anchorage system when used in combination with the MGS.
