Therefore while it is possible to pull a big fiver, you just can't stop a big combination or turn it quickly in emergencies. Other consequences could be frying the transmission, ripping up the rear differential, smoking the brakes etc. too. Reaction Time slows. Eye sight is not as crisp or focused. Stamina is waning.
Strength is less.
Lets face it statistically we get into more accidents than 30 year olds do. We must do everything possible to compensate for our aging capabilities and one way to do that is to drive the safest possible rigs especially when it comes to getting them stopped or turned in emergencies. Road Condition must be compensated for by adjusting our forward speed. There is a rule that is taught to truckers that says the base following distance has to be 4 seconds or more. One additional second is added to the base 4 second for each additional negative condition.