加拿大控制车速有高招，经济实惠效果肯定惊人

Speed controls being used in Canada .. How's this for effective speed control? 
加拿大使用的速度控制法..图中所示，对有效地控制车速......何如？

People slow down and actually try to "straddle" the hole. 
人们减速，小心翼翼开过路坑。

This is an actual speed control device that is currently in use. 
这是目前正在使用的道路速度控制设施。

It is MUCH cheaper than speed cameras, radar guns, police officers, etc.
比起摄像头、雷达枪、警察等，费用便宜多多了。

Pretty clever -- especially when they move them around every day. 
高，实在是高。每天还可以到处移动摆放，简单便捷。

Isn't art wonderful?
这一招是不是绝了？