1. True. Anything that distracts the driver from the road can be detrimental to his driving ability to maintain an awareness of the larger driving environment.
2. relative position. Depth perception is the ability to perceive the surrounding environment in three dimensions as well as the distance to an object through vision, whether the object is fixed or in movement, in front, or behind.
3. 4 seconds. That's the time needed when considering speeds up to 70mph.
4. True. All of those components are important for a safe drive - vehicle’s operation, position, speed, the condition of the roadway, and the actions of other drivers.
5. 30-36 degrees. It allows a focus for mid distances and blurring of what's around. It is important on a motorway, for example, as what's ahead is the most important once there isn't people or very busy areas around. It is also called of foveal vision. It's important when it comes to understanding the vehicle's position in the roadway, and viewing the line of sight.