QUICKCHANGE moveable concrete barrier system (FHWA-OK-92-06) 2721

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dc.contributor.sponsorOklahoma Department of Transportation. Materials and Research Division. Office of Research & Implementation
dc.creatorWilliams, Gary G.
dc.date.accessioned2018-09-06T21:52:14Z
dc.date.available2018-09-06T21:52:14Z
dc.date.issued1992-7
dc.description.abstractHighway construction operations must often be carried out in locations adjacent to active traffic lanes. When this happens, both workers and motorists are exposed to greater hazard levels than would be the case on a "closed roadway" worksite. Project I R-240-4(324)000 included a situation where contract requirements specified that lane closures could take place only between 7:00 PM and 7:00 AM. Both traffic conditions and the nature of the work on this project indicated a need for a barrier system between construction operations and motorists. A Quickchange Moveable Concrete Barrier (QMCB) System was purchased to .meet the requirements of this project. The QMCB Systen was evaluated by the Oklahoma Department of Transportation (ODOT) Research and Development Division. During Project I R-240-4(324)000 14,600 L.F. of QMCB Barrier was produced by a subcontractor and used on this project. 88 separate QMCB barrier wall shifts were made during work on the project. A total of 393, I 0 I L.F. of QCMB barrier was shifted. Information regarding barrier wall shifts was obtained by monitoring shifts, and by interviewing ODOT Construction personnel and contractor's employees. During the study, numerous collisions involving the QMCB Wall occurred. Only 12 of these accidents were reported to authorities. Accident Reports were requested from the Oklahoma Department of Public Safety. Selected items of information from these reports were analyzed. Performance of the QMCB System on this project was considered to be positive, both from an operations standpoint, and regarding its effectiveness as a protective barrier.
dc.description.peerreviewNo
dc.description.versionFinal Report 1988-1990
dc.format.extent43 pages
dc.format.extent12,857,399 bytes
dc.format.mediumapplication.pdf
dc.identifier.govdocFHWA-OK-96-06
dc.identifier.otherOklahoma Department of Transportation State Planning and Research item number 2721
dc.identifier.urihttps://hdl.handle.net/11244/301643
dc.languageen_US
dc.relation.ispartofseriesNo
dc.relation.requiresAdobe Acrobat Reader
dc.subject.keywordsQUICKCHANGE
dc.subject.keywordsMoveable barrier system
dc.titleQUICKCHANGE moveable concrete barrier system (FHWA-OK-92-06) 2721
dc.typeTechnical Report
dc.type.materialtext

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