原文传递 STUDY OF EFFECTIVENESS OF SELECTED SCHOOL ZONE TRAFFIC CONTROL DEVICES.
题名: STUDY OF EFFECTIVENESS OF SELECTED SCHOOL ZONE TRAFFIC CONTROL DEVICES.
作者: Schrader-MH
关键词: BEACONS-; BEFORE-AND-AFTER-STUDIES; FIBER-OPTICS; FIELD-TESTS; FLASHING-BEACONS; ROAD-LEGENDS; ROAD-MARKINGS; ROAD-STRIPES; SCHOOLS-; SPEED-CONTROL; SPEED-DATA; TRAFFIC-CONTROL-DEVICES; TRAFFIC-SIGNS
摘要: The effectiveness of five different school zone traffic control devices was tested. Each was tested at a unique site. Speed data were obtained at each site before the devices were added and again 1 month and 6 months after the devices were installed. The five devices tested in the study were fiber-optic signs, spanwire-mounted flashing yellow beacons, post-mounted flashing yellow beacons, transverse lavender stripes, and large painted legends. Of the five sites tested, only the site with the fiber-optic signs experienced a speed reduction significant at the 95% level. Several of the other sites also experienced decreases in speeds; however, these decreases were not statistically significant.
总页数: Transportation Research Record. 1999. (1692) pp24-29 (7 Fig., 2 Tab.)
报告类型: 科技报告
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