Quote:
Originally Posted by Nidge
[...]if you have one car doing 50MPH the car behind him is doing 45MPH [...]
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Actually, assuming a constant gap between the two cars the car behind the lead car would/could actually be doing the same speed.
This has to be true otherwise nobody would ever get anywhere.
What actually causes the phantom stoppages/tailbacks on motorways is people not paying attention. One person hits the brakes, the person behind them hits the brakes a little harder because they were travelling too close or not paying attention therefore they slow down
more, then the next person does the same, and so on.