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Evaluation of Traffic Control Devices for Rural High-Speed Maintenance Work Zones: Second Year Activities and Final Recommendations; Research rept. Sep 99-Aug 00
| 题名： | Evaluation of Traffic Control Devices for Rural High-Speed Maintenance Work Zones: Second Year Activities and Final Recommendations; Research rept. Sep 99-Aug 00 |
| 作者： | Fontaine, M. D.; Carlson, P. J.; Hawkins, H. G. |
| 关键词： | Traffic control devices; Rural areas; Construction sites; Effectiveness; Recommendations; Area traffic control; Highway maintenance; High speed |
| 摘要： | This report documents the second year of a two-year project to evaluate the effectiveness of innovative work zone traffic control devices. Researchers evaluated these devices at short-term rural work zones. During the second year of the project, seven devices were tested at eight work zones. The devices evaluated included portable rumble strips, portable variable message signs (VMSs), radar drones, fluorescent yellow-green worker vests, retroreflective vehicle visibility improvements, florescent orange signs, and speed display trailers. A radar activated flagger paddle was evaluated, but on a more limited basis. The effectiveness of these devices was assessed based on the vehicle conflicts, and worker comments. Analysis of the data collected revealed that the speed display trailer had the largest impact on speeds. The VMS had a positive benefit in reducing conflicts. The fluorescent orange signs, vehicle visibility improvements, and yellow-green worker vests all acted to improve the conspicuity of the workers. |
| 总页数： | 128p |
| 报告类型： | 科技报告 |
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