This speed range was chosen because it is when most collisions take place, especially rear-end shunts in slow-moving traffic.

之所以选择这样的速度范围，是因为大多数的碰撞都在此范围内发生，尤其是低速行驶时的追尾事故。

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We have seen as much as a 50% reduction in our preventable rear-end collisions.

我们已经看到，可预防的追尾事故下降了50%。

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Drivers complain that there will be more rear-end collisions when drivers suddenly brake to avoid jumping yellow lights.

司机抱怨说，当司机为了避免闯黄灯而突然踩刹车会造成更多追尾事故。

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Meanwhile, numerous studies, including an in-depth federal report, confirm that red-light cameras are associated with an increase in rear-end collisions as drivers slam on the brakes.

WSJ: Jenkins: The Answer Is a Longer Yellow

Power and Associates, attributes to National Highway Traffic Safety Administration safety standards that went into effect for the 2009 model year that were intended to help reduce whiplash injuries in rear-end collisions.

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