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- W630964650 abstract "Combining breakaway signs and luminaire supports has proven to be a cost-effective approach to improving roadside safety. In order to reduce the number of roadside obstacles, small roadside signs can be attached to luminaire supports. The large mass associated with the luminaire supports and the high forces required to activate large breakaway devices are the primary considerations associated with the system's safety performance. Consequently, luminaire supports are subjected to high decelerations when struck by errant vehicles. The rapid acceleration of the luminaire support could cause the sign panel to become detached and pose a potential hazard to vehicle occupants. A study was undertaken to determine the connection strength required to assure that sign panels remain attached to luminaire supports subjected to high-speed impacts. Most small signs are fabricated from aluminum sheeting and are limited to a maximum size of approximately 16 sq ft due to the bending strength of the panel. Since sign panel mass increases with sign area, the large signs will generate high connection loads. Furthermore, luminaire support accelerations are inversely related to size of the support. Several combinations of vehicle and support geometries and properties were investigated to assess a critical design case. Maximum connection loads were found to be associated with 4 ft x 4 ft sign panels mounted on short, 17 ft tall, luminaire supports. Recommendations are made concerning the connection devices used to keep the sign panels attached. Recommendations also are made on attaching sign panels to very tall luminaire supports." @default.
- W630964650 created "2016-06-24" @default.
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- W630964650 date "2002-10-23" @default.
- W630964650 modified "2023-09-26" @default.
- W630964650 title "ANALYSIS OF SIGN ATTACHMENTS TO BREAKAWAY LUMINAIRE SUPPORTS" @default.
- W630964650 cites W571675263 @default.
- W630964650 hasPublicationYear "2002" @default.
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