Originally Posted by Al
... If you are involved in an accident 22% more energy will be released (at 70) than at 50 resulting in that much more injury/damage.
"This shows that a 1% increase in average speed results in approximately a 2% increase in injury crash frequency, ...
No, 96% more energy would be released at 70 mph. (Because (70/50)^2=1.96) Your other numbers are correct (because 1.01^2 = 1.02, about).
... If you are involved in an accident 22% more energy will be released (at 70) than at 50 resulting in that much more injury/damage.
"This shows that a 1% increase in average speed results in approximately a 2% increase in injury crash frequency, ...
No, 96% more energy would be released at 70 mph. (Because (70/50)^2=1.96) Your other numbers are correct (because 1.01^2 = 1.02, about).