详情

原文传递 Crashworthiness Testing of a Portable Maintenace Work-Zone Barrier.

题名：	Crashworthiness Testing of a Portable Maintenace Work-Zone Barrier.
作者：	C. Caldwell;
关键词：	highway maintenance,portable equipment,median barriers,crashworthiness;barrier collision tests, work zone safety, construction site traffic control, traffic control devices, visibility, traffic flow, california;balsi beam
摘要：	Barrier and shadow vehicles generally provide Caltrans maintenance workers protection from errant vehicles entering the work zones, from the upstream direction of traffic flow. This type of protection does not protect workers from vehicles entering the work zone laterally. In an effort to provide workers with positive lateral protection the portable maintenance work-zone barrier (PMWB) was developed. The PMWB is more commonly know as the Balsi Beam named in honor of a Caltrans maintenance worker who was injured by an errant vehicle while performing his duties. The Balsi Beam consists of a modified tractor truck and trailer. The trailer has two telescoping box beams, one on each side, that connect the front and back of the trailer. To create a positive workspace, one of the beams rotates onto the other beam to create a double beam barrier. The trailer can then be extended to provide 9.1 m (30 feet) of protected workspace. The beams can both be rotated to protect either side of the trailer so that work can be done on median or shoulder areas. The portable barrier has the ability to be moved forward along the highway without any downtime for disassembly and reassembly. It was developed to be quick, easy, and safe to deploy at the work area. / NOTE: Final rept. / Supplementary Notes: Sponsored by California State Dept. of Transportation, Sacramento. Division of Research and Innovation. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA.
报告类型：	科技报告