Development And Evaluation Of The Midwest Guardrail System Mgs Placed Adjacent To A 2 1 Fill Slope
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Development And Evaluation Of The Midwest Guardrail System Mgs Placed Adjacent To A 2 1 Fill Slope
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Author :
language : en
Publisher:
Release Date : 2010
Development And Evaluation Of The Midwest Guardrail System Mgs Placed Adjacent To A 2 1 Fill Slope written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Roads categories.
Midwest Guardrail System Mgs With 6 Ft Posts Placed Adjacent To A 1v 2h Fill Slope
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Author : Austin J. Haase
language : en
Publisher:
Release Date : 2016
Midwest Guardrail System Mgs With 6 Ft Posts Placed Adjacent To A 1v 2h Fill Slope written by Austin J. Haase and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Roads categories.
Dynamic Impact Testing Of Wood Posts For The Midwest Guardrail System Mgs Placed Adjacent To A 2h 1v Fill Slope
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Author :
language : en
Publisher:
Release Date : 2010
Dynamic Impact Testing Of Wood Posts For The Midwest Guardrail System Mgs Placed Adjacent To A 2h 1v Fill Slope written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Roads categories.
Guidance For Installation Of Midwest Guardrail System Adjacent To Slopes
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Author : Robert W. Bielenberg
language : en
Publisher:
Release Date : 2020
Guidance For Installation Of Midwest Guardrail System Adjacent To Slopes written by Robert W. Bielenberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Roads categories.
The report provides general guidance for the installation of the Midwest Guardrail System (MGS) adjacent to slopes. This guidance included recommended barrier configurations adjacent to slope, discussion of dynamic deflection and working width, and recommendations regarding the use of MGS special applications with slopes.
Development Of A Mash Tl 3 Transition Between Guardrail And Portable Concrete Barriers
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Author : David A. Gutierrez
language : en
Publisher:
Release Date : 2014
Development Of A Mash Tl 3 Transition Between Guardrail And Portable Concrete Barriers written by David A. Gutierrez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Road work zones categories.
Often, road construction causes the need to create a work zone. In these scenarios, portable concrete barriers (PCBs) are typically installed to shield workers and equipment from errant vehicles as well as prevent motorists from striking other roadside hazards. For an existing W-beam guardrail system installed adjacent to the roadway and near the work zone, guardrail sections are removed in order to place the portable concrete barrier system. The focus of this research study was to develop a proper stiffness transition between W-beam guardrail and portable concrete barrier systems. This research effort was accomplished through development and refinement of design concepts using computer simulation with LS-DYNA. Several design concepts were simulated, and design metrics were used to evaluate and refine each concept. These concepts were then analyzed and ranked based on feasibility, likelihood of success, and ease of installation. The rankings were presented to the Technical Advisory Committee (TAC) for selection of a preferred design alternative. Next, a Critical Impact Point (CIP) study was conducted, while additional analyses were performed to determine the critical attachment location and a reduced installation length for the portable concrete barriers. Finally, an additional simulation effort was conducted in order to evaluate the safety performance of the transition system under reverse-direction impact scenarios as well as to select the CIP. Recommendations were also provided for conducting a Phase II study and evaluating the nested Midwest Guardrail System (MGS) configuration using three Test Level 3 (TL-3) full-scale crash tests according to the criteria provided in the Manual for Assessing Safety Hardware, as published by the American Association of Safety Highway and Transportation Officials (AASHTO).
Development Of The Midwest Guardrail System Mgs For Standard And Reduced Post Spacing And In Combination With Curbs
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Author :
language : en
Publisher:
Release Date : 2004
Development Of The Midwest Guardrail System Mgs For Standard And Reduced Post Spacing And In Combination With Curbs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Roads categories.
Steel Railing Type Il Oh
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Author : Scott K. Rosenbaugh
language : en
Publisher:
Release Date : 2021
Steel Railing Type Il Oh written by Scott K. Rosenbaugh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Bridges categories.
Over the past few years, the Midwest Roadside Safety Facility worked with the Illinois and Ohio Departments of Transportation to develop a new side-mounted, steel tube bridge rail to satisfy the American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware, Second Edition (MASH) Test Level 4 (TL-4) safety performance criteria. The new bridge rail was designed to be adaptable to multiple bridge deck configurations, including cast-in-place concrete slabs and prestressed box-beam decks. The system was designed to remain crashworthy after the placement of a future roadway overlay up to 3 in. thick. The final design incorporated three HSS tube rails supported by W6x15 posts spaced at 8 ft on-center. Additionally, a transition from the Midwest Guardrail System (MGS) to the new side-mounted, steel tube bridge rail was developed to satisfy MASH TL-3 criteria. The approach guardrail transition (AGT) incorporated the MGS upstream stiffness transition and 34-in. tall nested thrie-beam to account for future overlays. A distance of 9 ft was established between the last AGT post and the first bridge rail post in order to span over any structures that may prohibit post installation (abutments, wing walls and/or drainage features) Specialized HSS end rails were developed to extend between the adjacent bridge and AGT posts and provide the strength required to redirect errant vehicles. The development and full-scale testing of both the bridge rail and the transition were documented in previous reports. This report, the fourth in the series, summarizes the development and evaluation of the systems, contains CAD details and component variation descriptions, and provides implementation guidance for the Steel Railing Type IL-OH and its associated transition.
Safety Performance Evaluation Of The Non Blocked Midwest Guardrail System Mgs
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Author : Kevin D. Schrum
language : en
Publisher:
Release Date : 2013
Safety Performance Evaluation Of The Non Blocked Midwest Guardrail System Mgs written by Kevin D. Schrum and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Roads categories.
The roadway width required to install a guardrail system with a 12-in. (305-mm) blockout is not always available. In response, proprietary non-blocked W-beam guardrail systems were developed and successfully crash tested. However, the use of proprietary systems requires the State Deparments of Transportation to maintain inventory of specialized components. Therefore, a mon-proprietary, non-blocked W-beam guardrail system was developed.
Midwest Guardrail System For Long Span Culvert Applications
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Author :
language : en
Publisher:
Release Date : 2007
Midwest Guardrail System For Long Span Culvert Applications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Culverts categories.
Evaluation Of The Mgs With Half Post Spacing And 7 Ft Posts Adjacent To Slope
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Author : Robert W. BIelenberg
language : en
Publisher:
Release Date : 2024
Evaluation Of The Mgs With Half Post Spacing And 7 Ft Posts Adjacent To Slope written by Robert W. BIelenberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024 with Roads categories.
Evaluation of the MGS with half post spacing and 7-ft posts adjacent to slope.