LogFAQs > #972291819

Paratroopa1 posted...

Checking the rear view mirror every 2-3 seconds seems absurd because the situation behind me just isn't realistically going to change that much

That doesn't make sense. When going 60mph you move at 40ft/s, which is 3 car lengths per second. At 20mph it's still 1 car length per second. You can change a lane in under 3 seconds too.

On a highway the relative speeds are way less, so you don't need to check as much (and I'm pretty sure I do check less there). But for anywhere with traffic lights or 2-way traffic, 2-3 seconds seems necessary. Non-busy cities and suburbs especially because people will regularly go 20mph over, skip red lights, etc