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Evaluation Of The Performance Of Portable Precast Concrete Traffic Barriers
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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 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 Portable Precast Concrete Barrier (PPCB), Temporary Usage, Installations (second Year Evaluation) by : Raymond A. Adolfson
Download or read book Performance Evaluation of Portable Precast Concrete Barrier (PPCB), Temporary Usage, Installations (second Year Evaluation) written by Raymond A. Adolfson and published by . This book was released on 1980 with total page 16 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 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 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 Portable Precast Concrete Median Barrier (PPCMB), Temporary Usage, Installations by : Raymond A. Adolfson
Download or read book Performance Evaluation of Portable Precast Concrete Median Barrier (PPCMB), Temporary Usage, Installations written by Raymond A. Adolfson and published by . This book was released on 1979 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Bolted Configuration and Grouted Toes, Test No. NJPCB-2 by : Surajkumar Bhakta
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Bolted Configuration and Grouted Toes, Test No. NJPCB-2 written by Surajkumar Bhakta and published by . This book was released on 2018 with total page 126 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 second system as part of this study.
Book Synopsis Performance Evaluation of New Jersey's Portable Concrete Barrier with a Box-beam Stiffened Configuration and Grouted Toes, Test No. NJPCB-5 by : Surajkumar Bhakta
Download or read book Performance Evaluation of New Jersey's Portable Concrete Barrier with a Box-beam Stiffened Configuration and Grouted Toes, Test No. NJPCB-5 written by Surajkumar Bhakta and published by . This book was released on 2018 with total page 174 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 fifth 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 Performance of Temporary Concrete Traffic Barriers During the Widening of I-95 by : Frank N. Lisle
Download or read book Performance of Temporary Concrete Traffic Barriers During the Widening of I-95 written by Frank N. Lisle and published by . This book was released on 1982 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research effort was initiated at the request of officials of the Virginia Department of Highways and Transportation to obtain information on the performance of the precast concrete traffic barrier (PCTB) when exposed to heavy vehicles. The PCTB is a portable system used in Virginia since 1976 to separate high speed vehicular traffic and construction activities. The PCTB system was evaluated during the widening of I-95 at Ashland. The scope of the evaluation included (1) an examination of the traffic accident data for I-95 before and during construction to determine the effects of construction on the frequency and characteristics of traffic accidents, (2) an analysis of tire marks on the barrier and barrier-involved accidents to obtain an indication of the effectiveness of the PCTB in safely redirecting vehicles, and (3) an examination of the effects of the PCTB system on traffic operations. The research effort found that (1) the traffic accident rate in the construction zone on I-95 was 12% higher than before construction, (2) the reduction in the lateral distance between the vehicles in the median and shoulder lanes during construction appeared to contribute to an increase in the number of sideswipe type accidents, (3) 97% of the vehicles which impacted the barrier were safely redirected, (4) drivers were more at ease with the barrier located on the left edge of the roadway than when located on the right, and (5) vehicular speeds were reduced by only a few miles per hour when the barriers were in place. A subsequent study utilizing mathematical computer modeling techniques is recommended, since the performance of the PCTB system when impacted by a heavy vehicle was not identified in this study.
Book Synopsis Evaluation of Timber Barricades and Precast Concrete Traffic Barriers for Use in Highway Construction Areas by : F. N. Lisle
Download or read book Evaluation of Timber Barricades and Precast Concrete Traffic Barriers for Use in Highway Construction Areas written by F. N. Lisle and published by . This book was released on 1976 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: On August 15, 1975, the National Transportation Safety Board submitted a number of recommendations to the Administrator of the Federal Highway Administration and the Governor of Virginia regarding safety practices in the construction zone of I-495 in Northern Virginia. Subsequently, officials of the Virginia Department of Highways and Transportation requested that the Virginia Highway and Transportation Research Council evaluate the recommendations that pertained to the use of timber barricades. The scope of the evaluation included (1) a survey of the literature on the subject of legal requirements for temporary barrier systems in highway construction zones, (2) an analysis of crash data on I-495 for periods before and during construction, and (3) an analysis of the technical operational, and economic feasibility of the timber barricade and the precast concrete traffic barrier. The evaluation has revealed that there is no adequate national standard for traffic control in construction zones. Consequently, as in the case studied here, engineers are left to exercise their judgment as to the proper use and placement of delineators, barricades and other channelizing devices, and traffic barriers. The evaluation also has indicated that the frequency of accident occurrence during construction on I-495 was approximately 119% higher than before construction. Of the reported crashes during construction, 52.5% involved vehicle contact with the timber barricades. Among barricade-involved crashes, 73.5% involved vehicles which straddled or penetrated the barricades. Thus, in service on the I-495 site the timber barricades have proved, to be ineffective as positive barriers. The precast concrete traffic barrier was found to cost approximately $5.60 per linear foot more than the timber barricade employed on I-495. Testing of the precast concrete traffic barrier in a freeway construction zone is recommended prior to its general use in the Commonwealth.
Book Synopsis MASH TL-3 Evaluation of Concrete and Asphalt Tied-down Anchorage for Portable Concrete Barrier by : Robert W. Bielenberg
Download or read book MASH TL-3 Evaluation of Concrete and Asphalt Tied-down Anchorage for Portable Concrete Barrier written by Robert W. Bielenberg and published by . This book was released on 2019 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to evaluate Wisconsin DOT’s F-shaped portable concrete barriers (PCBs) with a bolt-through, tie-down anchorage system for concrete road surfaces with a reduced embedment epoxy anchorage and a steel pin tie-down anchorage system for asphalt surfaces according to Manual for Assessing Safety Hardware 2016 (MASH 2016) Test Level 3 (TL-3) test designation no. 3-11 criteria. Test no. WITD-1 consisted of PCBs with a bolt-through, tie-down configuration on concrete tarmac. The system was installed with the rear toe of the PCBs placed 1 in. (25 mm) away from the edge of the simulated bridge deck. Barrier nos. 5 through 13 were attached on the traffic side with three 1 1/8-in. (29-mm) diameter A307 Grade A threaded rods per barrier epoxied into the concrete with an embedment depth of 51⁄4 in. (133 mm). The test results for test no. WITD-1 showed that the system sufficiently contained and redirected the 2270P vehicle with controlled lateral displacements of the barrier, and the barrier system was deemed acceptable according to MASH 2016 TL-3 criteria. Test no. WITD-2 consisted of PCBs with a pinned, tie-down configuration placed on a 2-in. (51-mm) thick asphalt pad. The rear toe of the PCBs were installed 6 in. (152 mm) from the edge of a 36-in. wide x 36-in. deep (914-mm x 914-mm) trench. Barrier nos. 6 through 14 were anchored on the traffic side of the system with three 11⁄2-in. (38-mm) diameter steel pins driven through the bolt anchor pockets on each barrier. During test no. WITD-2 the wheel well and toe pan were deformed a maximum of 131⁄2 in. (343 mm), which surpassed the MASH 2016 deformation limits. Due to the deformation, test no. WITD-2 was deemed unacceptable under the MASH 2016 TL-3 test designation no. 3-11 safety criteria. Potential barrier modifications for improving the performance were noted for future research.
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 Evaluation of timber barricades and precast concrete traffic barriers for use in highway construction areas by :
Download or read book Evaluation of timber barricades and precast concrete traffic barriers for use in highway construction areas written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
