Parking lots are usually near businesses, hospitals, government buildings, schools, hotels, zoos, etc. If many people go to these places, then the parking lots will be large. If not too many people go to these places, then the parking lots will be small. Small lots are usually unsupervised. Large lots are usually supervised by an attendant stationed in a small booth at the lot's entrance. He may issue a pass to a vehicle's driver that is stamped with the vehicle's arrival time. He will collect a fee from the driver when the vehicle leaves the lot. Some hotels provide free parking and those parking lots are big enough with lot of entrance. 