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A comment on Police use ultrasonic device to make sure drivers stay 3 feet from cyclists. Parent comment

Re:Police use ultrasonic device to make sure drivers stay 3 ... by steveax on Sunday June 14, 2015 @10:00PM (#9717110)
There are many laws like that, following too close comes to mind. If in doubt, wait to pass until you're sure you have room.
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Re:Police use ultrasonic device to make sure drivers stay 3 ... by UnoriginalGuy on Sunday June 14, 2015 @10:42PM (#9717226)
Following too close is rarely enforced, and it is a big problem. It appears like technology might help mitigate this one, radar-based systems are becoming more standard and several systems are designed to warn when you travel too close for a given speed. Additionally radar based cruise control means that even if you DO travel too close, the faster reaction of the system might avert a collision.
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Re:Police use ultrasonic device to make sure drivers stay 3 ... by steveax on Sunday June 14, 2015 @11:21PM (#9717342)
Yep, it's the cause of many accidents. I noticed that Tesla's new cruise control uses radar and adjusts the speed to maintain adequate distance [1]

[1]: http://arstechnica.com/cars/2015/05/review-teslas-new-model-...

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