The range I use is a private club but we do open to the public for special events. Those event make use of our range safety officers and instructors. Normally there are no range safety officers on duty for members. We require members to go through orientation before they can use the range. Some people don't remember what they are taught so we have the rules posted on a 4x4 foot board and copies of the rules in cases for members to keep.
The range has an archery range, a knife and hawk throwing range, black powder muzzle loading range, seven dedicated pistol bays 30 feet wide, a small bore and action range, a rifle range with back drops at 25, 50, 1, 2, 3, 4, 5, and 600 yards and a five stand range. All of the ranges but the pistol ranges have a dedicated firing line. The pistol bays are set up so you can fire at ranges of 7 to 30 yards. There are bullet stops between each bay so it is safer to be down range when someone in the next bay is firing.
If there were no separations between the pistol bays, or when more than one person using the bays there are portable target stands that can be placed nearer the shooter if they want to shoot closer than the other person. We use a three flag system to control the firing line. a black flag signifies the range is closed. Guns may not be brought from a vehicle to the firing line but they can be moved from the firing line to a vehicle. A yellow flag signifies there are people down range and no gun is to be handled or transported so long as the yellow flag is up, not even in a case from a vehicle to the firing line. When the red flag is up the range is hot and guns can be transported and handled.