For most people a resting heart rate of 57 is fine. Medical guidelines put normal resting pulse (heart) rates at 60-100 BPM. 3 points off is nothing to worry about.
There are seven basic areas of operating space around the vehicle. The diagram on next slide shows the six zones, areas, or spaces surrounding the car which are visible to the driver. A zone is an area of space around a vehicle that is the width of a lane and extends as far as the driver can see. The vehicle occupies the central area, or Zone 7.
The main or core population of the asteroid belt is sometimes divided into three zones, based on the most prominent Kirkwood gaps: 1  Zone I lies between the 4:1 resonance (2.06 AU) and 3:1 resonance (2.5 AU) Kirkwood gaps. 2  Zone II continues from the end of Zone I out to the 5:2 resonance gap (2.82 AU).