发明名称 Optical speed bump
摘要 A speed control method and device. A speed bump is optically simulated on a roadway as by painting the roadway to create the appearance of a real speed bump, or an actual speed bump is visually enhanced to appear larger than it actually is. Actual speed bumps can be randomly interspersed among simulated speed bumps along a roadway.
申请公布号 US2002172553(A1) 申请公布日期 2002.11.21
申请号 US20010859179 申请日期 2001.05.16
申请人 GROFF BRADLEY K. 发明人 GROFF BRADLEY K.
分类号 E01F9/047;(IPC1-7):E01F11/00 主分类号 E01F9/047
代理机构 代理人
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