The correct answer should be Line of sight.
What then is your Line of sight?
Your line of sight is the noticeable path of travel from your vehicle to your destination area. This line can be obstructed by a curve, a hill, high-forest wooded zones, large truck or other obstruction that prevents drivers from seeing the vehicle ahead. Therefore, if you cannot see around an obstruction, you should slow down and be willing to adjust your position until you can reestablish a clear line of sight to your path of travel and targeting area.
