Question

When driving, the average reaction time is

Answer 1

2.3 seconds

Reaction times vary greatly with situation and from person to person between about 0.7 to 3 seconds (sec or s) or more. Some accident reconstruction specialists use 1.5 seconds. A controlled study in 2000 (IEA2000_ABS51.pdf) found average driver reaction brake time to be 2.3 seconds.

Answer 2

The average driver reaction time should be around 2 seconds but it depends on various factors including muscle memory. If you've been driving for a while, you can react faster without having to think but your reaction time goes up as you age.