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Nchrp Report 350
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Book Synopsis NCHRP Report 350 Assessment of Existing Roadside Safety Hardware by : Eugene Buth
Download or read book NCHRP Report 350 Assessment of Existing Roadside Safety Hardware written by Eugene Buth and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Federal Highway Administration initiated this contract with the objective to crash test and evaluate several terminals, transitions, and longitudinal barriers to NCHRP Report 350. NCHRP Report 350 specifies crash tests and evaluation criteria for three performance levels for terminals and six performance levels for transitions and longitudinal barriers. The buried-in-backslope terminals evaluated were the G4 on steel posts and wood blockouts with a rub rail and a 6 to 1 vee ditch and the G4 with steel posts and wood blockouts with a 4 to 1 slope. Both met specifications for NCHRP Report 350 test 3-35. The 3-strand New York cable terminal was evaluated and met requirements for NCHRP Report 350 test 3-34. The transitions evaluated under this contract included the vertical wall transition (W-beam with W-beam rub rail and steel posts), the vertical flared back transition (W-beam with channel rub rail, steel posts, and routed wood blockouts), the Pennsylvania Department of Transportation (DOT) transition (vertical flared back concrete parapet with W-beam, rub rail, steel posts, and routed wood blockouts), the Nebraska thrie beam transition (vertical wall parapet with thrie beam), and the Connecticut W-beam transition (NJ-shape wall with W-beam and channel rub rail). All the transitions met the required criteria for NCHRP Report 350 test 3-21, except for the vertical flared back transition. The MB1 median cable barrier chosen for evaluation was the Washington State DOT (WSDOT) cable barrier with a New York cable rail terminal. The thrie beam guardrail with steel posts and routed wood blockouts and the strong wood post thrie beam guardrail were also evaluated. The cable barrier and both thrie beam guardrails met the required specifications for NCHRP Report 350 test 3-11. The modified thrie beam guardrail with 2.1-m-long W150x14 steel posts and W360x33 blockouts (Design No. SGR09b) was evaluated and met specifications for NCHRP Report 350 test 4-12. Construction details for all the terminals, transitions, and longitudinal barriers evaluated are reported herein. Also included are details of the crash tests performed and the assessment of each test."--Technical report documentation page.
Book Synopsis Summary of the NCHRP Report 350, Crash Test Results for the Narrow Connecticut Impact Attenuation System by : Erika B. Smith
Download or read book Summary of the NCHRP Report 350, Crash Test Results for the Narrow Connecticut Impact Attenuation System written by Erika B. Smith and published by . This book was released on 2003 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials. Task Force for Roadside Safety Publisher : ISBN 13 : Total Pages :560 pages Book Rating :4.0/5 ( download)
Book Synopsis Roadside Design Guide by : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summary of the NCHRP Report 350 by : John F. Carney
Download or read book Summary of the NCHRP Report 350 written by John F. Carney and published by . This book was released on 1995 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NCHRP Report 350 Compliance Test 5-12 of the 1.07-m Vertical Wall Bridge Railing by : Dean C. Alberson
Download or read book NCHRP Report 350 Compliance Test 5-12 of the 1.07-m Vertical Wall Bridge Railing written by Dean C. Alberson and published by . This book was released on 1997 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal Highway Administration (FHWA) recently adopted new performance evaluation guidelines for roadside safety features set forth in NCHRP Report 350. This report contains the results of a crash test performed on the 1.07-m vertical wall bridge railing with a 36000V test vehicle under NCHRP Report 350 test level 5 conditions, i.e., impacting the length of need at a nominal speed and angle of 80 km/h and 15 degrees. The purpose of the test was to determine if the bridge railing would perform satisfactorily in containing and redirecting the heavy vehicle without rolling the vehicle.
Book Synopsis NCHRP Report 350 Testing of Montana Portable Concrete Safety Shape Barriers by : Eugene Buth
Download or read book NCHRP Report 350 Testing of Montana Portable Concrete Safety Shape Barriers written by Eugene Buth and published by . This book was released on 2003 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The existing Montana Department of Transportation (DOT) concrete median barrier sections are 3.048 m (10 ft) long New Jersey shaped barriers with a pin-and-loop connection. Two pairs of 25 mm (1 in.) diameter wire rope loops are connected using a 660 mm (26 in.) long, 25 mm (1 in.) diameter pin that is not restrained at the bottom. Since the system has a low probability of complying with the NCHRP Report 350 guidelines, and the expected dynamic barrier deflection under design impact conditions is greater than desired by Montana DOT, two alternate barrier connection concepts were proposed and evaluated using computer simulations. These included a modified pin-and-loop connection and a newly conceived lapped splice connection. After these two designs appeared to perform acceptably during simulation, the proposed designs were constructed for full-scale crash testing to determine whether the designs would actually meet NCHRP Report 350 crash test criteria. This report presents the details of the simulation analysis, the details of the proposed barrier designs, the details of the full-scale crash tests, and the NCHRP Report 350 evaluation of each of the tests. Both the modified pin-and-loop barrier and the lapped splice connection barrier performed acceptably for NCHRP Report 350 test 3-11.
Book Synopsis NCHRP Report 350 Compliance Test of the New Jersey Safety Shaped Barrier by : King K. Mak
Download or read book NCHRP Report 350 Compliance Test of the New Jersey Safety Shaped Barrier written by King K. Mak and published by . This book was released on 1997 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The New Jersey safety shaped barrier is one of the most common barriers currently in use on the Nation's highways. The barrier has successfully met all evaluation criteria set forth in National Cooperative Highway Research Program (NCHRP) Report 230. However, with the adoption of NCHRP Report 350 by the Federal Highway Administration (FHWA) as the official guidelines for crash testing of roadside safety features, it became necessary to reevaluate the New Jersey safety shaped barrier to the new guidelines. Of particular importance is the replacement of one of the design test vehicles specified in NCHRP Report 230, the 2044-kg passenger car, by a 2000-kg pickup truck (2000P) under NCHRP Report 350 guidelines. The crash test reported herein was performed as an effort to evaluate the New Jersey safety shaped barrier according to NCHRP Report 350 guidelines. The crash test performed corresponded to NCHRP Report 350 test designation 3-11 involving a 2000P test vehicle impacting the barrier at a nominal speed and angle of 100 km/h and 25 degrees. The New Jersey safety shaped barrier met all evaluation criteria set forth in NCHRP Report 350 and the test was judged to be satisfactory.
Book Synopsis NCHRP Report 350 Evaluation of the Nebraska Thrie-beam Transition by : Brian G. Pfeifer
Download or read book NCHRP Report 350 Evaluation of the Nebraska Thrie-beam Transition written by Brian G. Pfeifer and published by . This book was released on 1998 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summary of the NCHRP Report 350, Crash Test Results for the Connecticut Impact Attenuation System (CIAS) by : Paul F. D'Attilio
Download or read book Summary of the NCHRP Report 350, Crash Test Results for the Connecticut Impact Attenuation System (CIAS) written by Paul F. D'Attilio and published by . This book was released on 2004 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NCHRP Report 537 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NCHRP Report 350 Test 3-11 of the Texas Type T411 Bridge Rail by : Eugene Buth
Download or read book NCHRP Report 350 Test 3-11 of the Texas Type T411 Bridge Rail written by Eugene Buth and published by . This book was released on 1998 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of an NCHRP Report 350 TL-3 New Jersey Shape 50-inch Portable Concrete Barrier by : Chuck A. Plaxico
Download or read book Development of an NCHRP Report 350 TL-3 New Jersey Shape 50-inch Portable Concrete Barrier written by Chuck A. Plaxico and published by . This book was released on 2006 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: For roadside work-zones in areas that have opposing traffic flow, safety is enhanced if the temporary barriers incorporate a "glare-shield" that blocks headlight glare from opposing traffic. Currently-available 32-inch portable concrete barriers require the use of an add-on glare shield attached to the top of the barrier. The add-on glare shields are an extra expense and complicate barrier set-up and handling. An alternative solution was to develop a 50-inch high portable concrete barrier which is tall enough to serve as its own glare-shield. Finite element analysis was used to investigate various barrier shapes and connection schemes to identify a successful crashworthy design that would meet requirments of NCHRP Report 350 Test level 3. A 50-inch portable concrete barrier design was developed based on the results of the finite element analyses and was crash tested at the Transportation Research Center in East Liberty, Ohio. The system successfully met all safety criteria of NCHRP Report 350 and has been approved by the Federal Highway Administration for use on the National Highway System as a test level 3 device.
Book Synopsis Crashworthy Work-zone Traffic Control Devices by : Roger P. Bligh
Download or read book Crashworthy Work-zone Traffic Control Devices written by Roger P. Bligh and published by Transportation Research Board. This book was released on 2006 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NCHRP Report 350 Test 3-11 of the Washington Type 2 Concrete Barrier by : Delbert Lance Bullard
Download or read book NCHRP Report 350 Test 3-11 of the Washington Type 2 Concrete Barrier written by Delbert Lance Bullard and published by . This book was released on 2001 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two crash tests are required to evaluate portable concrete barriers, such as Washington Department of transportation (WsDOT) Type 2 concrete barriers, to NCHRP Report 350 test level three (TL-3). NCHRP Report 350 test designation 3-10 involves an 820 kg passenger vehicle impacting the critical impact point (CIP) of the length of need (LON) section at a nominal speed and angle of 100 km/h and 20 degrees. NCHRP Report 350 test designation 3-11 involves a 2000 kg pickup truck impacting the CIP of the LON section at a nominal speed and angle of 100 km/h and 25 degrees. Finite element analysis using LS-DYNA was used to simulate NCHRP Report 350 test designation 3-11 with the 2000 kg pickup truck on the standard Type 2 concrete barrier with a pin and loop connection and two modified pin and loop connections. In subsequent full-scale crash tests, both the standard and a modified concrete barrier met the evaluation criteria of NCHRP Report 350 for Test 3-11. For each of the two pin and loop configurations crash tested, the Washington Type 2 concrete barrier met the evaluation criteria of NCHRP Report 350 for test 3-11.
Book Synopsis Development of a Plan for Compliance with NCHRP 350 for Temporary Concrete Barriers by : Muhannad Zubi
Download or read book Development of a Plan for Compliance with NCHRP 350 for Temporary Concrete Barriers written by Muhannad Zubi and published by . This book was released on 2002 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal Highway Administration has mandated that temporary concrete barriers (TCBs) used on federally funded projects on the National Highway System advertised after October 1, 2002 shall meet the requirements of National Cooperative Highway Research Program (NCHRP) Report 350. The State's present TCB system design is not approved as meeting the NCHRP 350 requirements, and even with modifications it is not likely to meet those standards. The Arizona Department of Transportation (ADOT) and Arizona industry partners are to evaluate many key factors in the ADOT's effort to develop an NCHRP 350 compliance plan for TCBs. Arizona intends to adopt the most valid non-proprietary TCB design, out of already approved designs, for future use in Arizona.
Book Synopsis Guidelines for Design and Operation of Nighttime Traffic Control for Highway Maintenance and Construction by : James E. Bryden
Download or read book Guidelines for Design and Operation of Nighttime Traffic Control for Highway Maintenance and Construction written by James E. Bryden and published by Transportation Research Board. This book was released on 2002 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NCHRP Report 350 Test 4-11 of the New York Four-Rail Curbless Bridge Railing by : C. Eugene Buth
Download or read book NCHRP Report 350 Test 4-11 of the New York Four-Rail Curbless Bridge Railing written by C. Eugene Buth and published by . This book was released on 1999 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the details of the New York Four-Rail Curbless Bridge Railing and results of the pickup truck test: National Cooperative Highway Research Program (NCHRP) Report 350 test designation 4-11, which is the 2000-kg pickup truck impacting the critical impact point (CIP) at 100 km/h and 25 degrees. The New York Four-Rail Curbless Bridge Railing met the required criteria specified for NCHRP 350 test designation 4-11.
