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Performance Assessment Of Road Barriers In Indiana
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Book Synopsis Performance Assessment of Road Barriers in Indiana by : Yaotian Zou
Download or read book Performance Assessment of Road Barriers in Indiana written by Yaotian Zou and published by . This book was released on 2016-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Road barriers have been used as an effective countermeasure to prevent exposure of errant vehicles to both vehicles travelling in the opposite direction and to roadside hazards. The objective of this study was to evaluate the in-service safety performance of three types of road barriers (concrete barriers, steel W-beam guardrails, and high-tension cable barriers) in Indiana using cross-sectional analysis based on crash data. The quantitative evaluation was comprised of three components: 1) the effect of the road, barrier scenarios, and traffic on the barrier-relevant (BR) crash frequency, 2) the effect of the road and the barrier scenarios on the BR harmful events, and 3) the effect of the BR events and other conditions on the injury outcomes.The introduction of the BR harmful events linked the crash onset with its outcome. The three developed statistical models were connected through their inputs-outputs and followed the sequence of various BR events during the BR crash. This improvement allowed a more comprehensive and insightful analysis of the barriers' safety effects and a more efficient use of data. The injury outcomes were estimated for all the individuals in a crash rather than for the most severe outcome of a crash. Further improvement of the cost estimates was accomplished by utilizing hospital data.For median barriers, this study found that the total number of BR crashes was higher with the use of median barriers, mostly due to the introduction of collisions with barriers and an increase in the collisions after redirecting vehicles back to traffic. These undesirable effects of barriers were surpassed by the positive results of reducing hazardous events such as cross-median crashes, rollover events, and collisions with roadside hazards, which substantially reduced the number of severe injuries and fatalities.
Book Synopsis In-service Performance of Traffic Barriers by : Malcolm H. Ray
Download or read book In-service Performance of Traffic Barriers written by Malcolm H. Ray and published by Transportation Research Board. This book was released on 2003 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is a report on a research agenda to better inform future societal decisions on ocean CDR [carbon dioxide removal]; the Committee is not advocating either for or against possible future ocean CDR deployments, and the Committee recognizes that ocean CDR would, at best, complement the role of climate mitigation approaches including decarbonization"--Page viii.
Book Synopsis Develop Guidelines for Inspection, Repair, and Use of Portable Concrete Barriers by : Chiara Silvestri Dobrovolny
Download or read book Develop Guidelines for Inspection, Repair, and Use of Portable Concrete Barriers written by Chiara Silvestri Dobrovolny and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Performance Evaluation of New Jersey's Portable Concrete Barrier with a Traffic-side Pinned Configuration and Grouted Toes, Test No. NJPCB-7 by : Surajkumar Bhakta
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Traffic-side Pinned Configuration and Grouted Toes, Test No. NJPCB-7 written by Surajkumar Bhakta and published by . This book was released on 2018 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents a full-scale crash test conducted in support of a study to investigate the performance of New Jersey Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable concrete barrier (PCB) in various configurations. This represents the seventh system as part of this study.
Book Synopsis Performance Evaluation of Selected Traffic Barrier End Treatments by : Michael T. Stanley
Download or read book Performance Evaluation of Selected Traffic Barrier End Treatments written by Michael T. Stanley and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of the Performance of Acoustic Barriers for Indiana Toll Roads by : Luc Mongeau
Download or read book Study of the Performance of Acoustic Barriers for Indiana Toll Roads written by Luc Mongeau and published by . This book was released on 2001 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Safety Effectiveness Evaluation of Traffic Barrier Systems by : United States. National Transportation Safety Board
Download or read book Safety Effectiveness Evaluation of Traffic Barrier Systems written by United States. National Transportation Safety Board and published by . This book was released on 1980 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traffic barriers are roadside hardware of various designs and materials which are intended to protect vehicles from such off-the-road hazards as trees, embankments, ravines, signposts, bridge support pillars or abutments, or other hazards. The National Transportation Safety Board (NTSB) has been concerned with the problem of inadequate traffic barriers for several years. The Safety Board has investigated accidents in which barriers failed, and has made recommendations to the FHWA. Of primary importance among these have been recommendations that the FHWA develop and promulgate mandatory performance standards for traffic barriers. The purpose of such standards would be to require that traffic barrier types be crash-tested to demonstrate their ability to meet a set of established safety criteria. At present, barriers are not required to meet such criteria through crash-testing. The purpose of this report is to review past Safety Board concerns regarding the adequacy of bridge and highway rail systems and to evaluate the FHWA's efforts to develop safer traffic barriers. This study analyzes the results of recent crash-testing sponsored by the FHWA and makes recommendations concerning performance standards for traffic barriers.
Book Synopsis Performance Evaluation of New Jersey's Portable Concrete Barrier with a Grouted Bolted Configuration in Asphalt, Test No. NJPCB-8 by : Cody S. Stolle
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Grouted Bolted Configuration in Asphalt, Test No. NJPCB-8 written by Cody S. Stolle and published by . This book was released on 2018 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents a full-scale crash test conducted in support of a study to investigate the performance of New Jersey Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable concrete barrier (PCB) in various configurations. This represents the eighth system as part of this study.
Book Synopsis Performance Evaluation of New Jersey's Portable Concrete Barrier with a Pinned Configuration in Asphalt, Test No. NJPCB-9 by : Cody S. Stolle
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Pinned Configuration in Asphalt, Test No. NJPCB-9 written by Cody S. Stolle and published by . This book was released on 2018 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents a full-scale crash test conducted in support of a study to investigate the performance of New Jersey Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable concrete barrier (PCB) in various configurations. This represents the ninth system as part of this study.
Book Synopsis Evaluation of the Performance of Portable Precast Concrete Traffic Barriers by : Frank N. Lisle
Download or read book Evaluation of the Performance of Portable Precast Concrete Traffic Barriers written by Frank N. Lisle and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The portable precast concrete traffic barrier is used to separate high speed vehicular traffic and construction activities. However, since there was a lack of information on the barrier's performance in a construction zone environment, officials of the Virginia Department of Highways and Transportation requested that the Virginia Highway and Transportation Research Council evaluate the performance of the barrier during the widening of the Virginia Beach-Norfolk Expressway (Rte. 44). The scope of the evaluation included (1) a review of the literature on the performance of the concrete "safety shape" barriers, (2) an examination of the accident data before and during construction on Rte. 44 to determine the effects of construction on the frequency and characteristics of traffic accidents, (3) an analysis of tire marks and barrier-involved accidents to determine the effectiveness of the barriers in safely redirecting vehicles, and (4) an examination of the effects of construction on traffic characteristics. The literature review revealed that in using the precast concrete traffic barrier the following factors should be considered: (1) the end of the barrier should never be exposed to oncoming traffic; (2) the barrier joints must be tight for the barriers to act as a system; (3) the longitudinal axis of the barriers should be placed parallel to the roadway, except when the barrier system is started with a flare; (4) the barrier system should have a minimum length of 100 feet (30 m); and (5) the barrier system must have lateral support in order to prevent vehicle penetration. For conditions on Rte. 44, it was found that (1) there was an average of 49 vehicle contacts with the barrier for every reported accident in which the barrier was involved; (2) there was a definite tendency for motorists to stay out of the barrier lane, but avoidance of the barrier lane was reduced as volume increased; and (3) with a 55 mph (88 km/h) posted speed limit, the vehicular speeds were reduced by only a few miles per hour when the barriers were in place. Evaluation of the barrier's performance during the widening of I-95 is recommended, since that highway carries a much higher volume of tractor-trailers than does Rte. 44.
Book Synopsis Performance Evaluation of Selected Traffic Barrier End Treatments by : Michael T. Stanley
Download or read book Performance Evaluation of Selected Traffic Barrier End Treatments written by Michael T. Stanley and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Evaluation of Selected Traffic Barrier End Treatments by : Michael T. Stanley
Download or read book Performance Evaluation of Selected Traffic Barrier End Treatments written by Michael T. Stanley and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Evaluation of New Jersey's Portable Concrete Barrier with a Free-standing Configuration and Grouted Toes, Test No. NJPCB-3 by : Surajkumar Bhakta
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Free-standing Configuration and Grouted Toes, Test No. NJPCB-3 written by Surajkumar Bhakta and published by . This book was released on 2018 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents a full-scale crash test conducted in support of a study to investigate the performance of New Jersey Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable concrete barrier (PCB) in various configurations. This represents the third system as part of this study.
Book Synopsis Performance Evaluation of New Jersey's Portable Concrete Barrier with a Free-standing Configuration and Grouted Toes, Test No. NJPCB-4 by : Surajkumar Bhakta
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Free-standing Configuration and Grouted Toes, Test No. NJPCB-4 written by Surajkumar Bhakta and published by . This book was released on 2018 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents a full-scale crash test conducted in support of a study to investigate the performance of New Jersey Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable concrete barrier (PCB) in various configurations. This represents the fourth system as part of this study.
Book Synopsis Performance Evaluation of New Jersey's Portable Concrete Barrier with a Pinned Configuration and Grouted Toes, Test No. NJPCB-1 by : Surajkumar Bhakta
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Pinned Configuration and Grouted Toes, Test No. NJPCB-1 written by Surajkumar Bhakta and published by . This book was released on 2018 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents a full-scale crash test conducted in support of a study to investigate the performance of New Jersey Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable concrete barrier (PCB) in various configurations. This represents the first system as part of this study.
Book Synopsis Performance Evaluation of New Jersey's Portable Concrete Barrier with a Back-side Pinned Configuration and Grouted Toes, Test No. NJPCB-6 by : Surajkumar Bhakta
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Back-side Pinned Configuration and Grouted Toes, Test No. NJPCB-6 written by Surajkumar Bhakta and published by . This book was released on 2018 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents a full-scale crash test conducted in support of a study to investigate the performance of New Jersey Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable Department of Transportation's (NJDOT) Precast Concrete Curb, Construction Barrier, which will be referred to as portable concrete barrier (PCB) in various configurations. This represents the sixth system as part of this study.
Book Synopsis Indentifying Traffic Safety Needs - a Systematic Approach by : Andrew P. Tarko
Download or read book Indentifying Traffic Safety Needs - a Systematic Approach written by Andrew P. Tarko and published by Purdue University Press. This book was released on 2012-02-12 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Indiana Department of Transportation (INDOT) manages road safety in Indiana through safety emphasis areas, identification of safety needs within these areas, and development and implementation of transportation interventions that address the safety needs. Indiana applies system-wide performance screening to state roads using the somewhat limited, non-integrated tools available to date. A site-specific countermeasure development and evaluation process (scoring) is being used to determine essential project intent and merit or cost-effectiveness. This project addresses the need for a unifying approach to data-driven identification of safety emphasis areas and safety improvement projects via a systematic evaluation of safety needs in the Indiana road network. Such a method must utilize a database that integrates the Indiana state network, traffic, road inventory, and crash data. A method for safety screening of state roads in Indiana was developed with the following screening tasks in mind: (1) Identifying high crash locations (segments, intersection, ramps and bridges), corridors, and areas in terms of high crash frequency, crash rate, or proportion of a particular crash type. (2) Facilitating program-based screening (e.g., shoulder widening, median improvement). (3) Facilitating special programs and projects (e.g., five percent report). In order to ensure the versatility of screening tasks and the data maintenance, four components were included in the screening tool: (1) data management, (2) standard screening, (3) roads clustering and special studies, (4) results presentation.
