Author: Allison J. SchneiderPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 169
Book Description
Safety Performance Evaluation of Weak-post, W-beam Guardrail Attached to Culvert
Author: Allison J. SchneiderPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 169
Book Description
Safety Performance Evaluation of a Nested W-beam with Half-post Spacing Over a Low-fill Culvert
Author: Brian G. PfeiferPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 60
Book Description
Advances in Road Infrastructure and Mobility
Author: Amin AkhnoukhPublisher: Springer Nature
ISBN: 3030798011
Category : Technology & Engineering
Languages : en
Pages : 1211
Book Description
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.
Testing of State Roadside Safety Systems. Volume III: Appendix B: Crash Testing and Evaluation of a Guardrail System for Low-fill Culvert
Author: K. K. MakPublisher:
ISBN:
Category :
Languages : en
Pages : 84
Book Description
Guardrail and Median Barrier Crashworthiness
Author: Malcolm H. RayPublisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 172
Book Description
This synthesis will be of interest to state department of transportation (DOT) roadway design, traffic, structural, maintenance, and research engineers and others concerned with highway safety issues. This synthesis describes the current state of the practice for the use of guardrails and median barriers and their crashworthiness. It includes information about the crashworthiness and typical applications of the most common, permanently installed, nonproprietary guardrail and median barrier systems used in the United States today. A significant amount of detail is included in the text to aid the design, selection, and locating processes for safe and effective guardrails and median barriers. The report presents data obtained from a review of the literature and a survey of state DOTs. The synthesis presents a description of the typical longitudinal barriers in use today, including drawings, the extent of their use, and the most recent testing on each guardrail and barrier system, with particular emphasis on NCHRP Report 230 and 350 requirements. In addition, it discusses the maintenance issues, cost constraints, and common problems with each type of barrier. The synthesis only discusses the crashworthiness of guardrails and median barriers; their transitions and terminals are not discussed.
Safety Performance Evaluation of the Non-blocked Midwest Guardrail System (MGS)
Author: Kevin D. SchrumPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 236
Book Description
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.
MASH Test 3-11 Evaluation of TxDOT W-beam Guardrail with 71⁄2-inch Diameter Round Wood Posts in Concrete Mow Strip
Author: Sana M. MoranPublisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 0
Book Description
The purpose of the testing reported herein was to assess the performance of the Texas Department of Transportation (TxDOT) W-beam guardrail with 71⁄2-inch diameter round wood posts in concrete mow strip according to the safety-performance evaluation guidelines included in the American Association of Safety Highway and Transportation Officials Manual for Assessing Safety Hardware (MASH) for Test Level Three (TL-3) longitudinal barriers. The crash test performed was in accordance with MASH Test 3-11, which involves a 2270P vehicle impacting the TxDOT W-beam guardrail with 71⁄2-inch diameter round wood posts in concrete mow strip at a target impact speed and impact angle of 62 mi/h and 25°, respectively. The TxDOT W-beam guardrail with 71⁄2-inch diameter round wood posts in concrete mow strip performed acceptably for MASH Test 3-11.
Roadside Design Guide
Author: American Association of State Highway and Transportation Officials. Task Force for Roadside SafetyPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 560
Book Description
Performance Evaluation of Strong Post Double-faced W-beam Guardrail and Strong Post Double-faced Thrie-beam Guardrail at MASH Test Level 4 (TL-4) and Test Level 5 (TL-5) Conditions
Author: Howie FangPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 121
Book Description
NCHRP 350 Development and Testing of a Guardrail Connection to Low-fill Culverts
Author: Publisher:
ISBN:
Category : Bridge railings
Languages : en
Pages : 205
Book Description
In this research, a W-beam guardrail system was developed for installation with the steel post attached to the top of a low-fill concrete culvert. The guardrail system was constructed with a 2.66-mm (12-gauge) thick W-beam rail totaling 53.34 m in length. The post spacing was 1,905-mm on center for post numbers 1-9 and 33-41, while the post spacing for post numbers 9-33 was 952.5-mm on center. Two full-scale vehicle crash tests, using 3/4 ton pickup trucks, were performed on the W-beam guardrail system.
