12-15 seconds.
True
Two seconds.
Highly variable, but in inclement conditions at higher speeds a pro would be looking 20-30 seconds ahead a lot I think the book answer is at least ten..
12
According to the Smith System safe driving course. You should look ahead at least 15 seconds.
You follow the vehicle ahead of you by 3 seconds, you should never plan a path where you will be unless you are switching lanes and need to know how much space you have because while driving things can change in an instant, for good defensive driving just be prepared for anything at any time, and always follow vehicles by 3 seconds from the time their rear bumper passes an object until your front bumper passes the same stationary object
It depends on how fast your reflexes are, at a velocity of 176 feet per second (1 mile per minute), if your reflex reaction time is 2 seconds you need to look at least 352 feet ahead, if your reaction time is 3 seconds, then you should be looking at least 528 feet ahead.
a good rule of thumb, is to back off at least 1 car for every 10 miles per hour that your driving. this way, if theres a problem up ahead. you will have time to try and stop.
You should keep at least a three second distance to the car ahead.
4 to 5 seconds
10 to 15 seconds= 1 block= quarter of a mile
To "aim high" means to look far ahead when you drive. We do not look at our feet when we walk, we look ahead. Aiming high allows you to be able to analyze traffic situations. In city traffic, look at least one block ahead. On highways and expressways, look as far ahead as possible, for at least 2-3 seconds.