your line-of-sight is greater than 30 seconds ahead
To increase the distance between your car and the one ahead to more than 3 seconds when driving, you can slow down, maintain a safe speed, and avoid tailgating. This will give you more time to react to any sudden stops or changes in traffic.
2 seconds is the safe distance.
12-15 seconds
Following distance is typically measured in seconds. A common rule of thumb is the "3-second rule" where you should leave at least 3 seconds of following distance between your vehicle and the vehicle in front of you. To measure this, pick a stationary object on the side of the road, wait for the vehicle ahead of you to pass it, and then count how many seconds it takes for you to pass the same object.
a driver behind your vehicle is trying to pass you
Drivers should look 12 to 15 seconds ahead of their vehicle on city streets and ______ seconds ahead on freeways
the visibility
When a driver behind you is trying to pass.
I was taught that you should look ahead a minimum of 15 seconds ahead. That equates to about a block to a block and a half ahead of you.
You should keep a two second displacement between you and the rider ahead of you. This means when you see the rider ahead of you pass some point, you count two seconds before you pass that same point. This gives you two second to react to some disaster - ample time.
10 seconds (1/4 mile ahead)
both sides