What is the primary consequence of slowing down to look at collisions or anything else out of the ordinary while driving?

• It causes traffic congestion.
  Explanation:

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  Slowing down to look at collisions or unusual incidents on the road, commonly known as rubbernecking, causes traffic delays and congestion.

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• It helps prevent rear-end collisions.
• It improves traffic flow.
• It increases driving efficiency.