The triangles are known variously as 3-D, virtual or just plain fake speed humps.

这种三角形的东西是所说的各种不同的3维，实际只是纯粹假的最高时速测量器而已。

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"If there's a road with several speed humps then I'll be off by the time we've crossed the last one," she confessed. "I don't drive very often."

“如果路上有好几个减速带，那我就在通过最后一个之前下车，”她坦然地说道，“我不经常开车。”

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Like many other municipalities, Philadelphia has tried a variety of devices to slow drivers: real speed humps, traffic circles, curb extensions, rumble strips, slightly raised crosswalks.

象其它许多城市一样，费城尝试过很多设备让车手减速，用过真正的减速带，交通圈，控制带，橡胶条，略微提升的行人过道。

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The report also suggested average speed cameras and signs as an alternative to speed humps on residential roads to enforce 20mph limits.

BBC: Report recommends speed limit cut

In Swanage about 200 lights will remain lit overnight on all main roads, the seafront, roads with speed humps and in the town centre.

BBC: Swanage street lights switch-off to save ?150,000 a year