Trucks pull into the quarry to pick up material.
After the truck has been filled, it pulls back onto the scale. A computer then calculates the truck's load, determining how much limestone the truck has picked up. He's concerned about dispatch mistakes and late shipments. Electronic Eye designed a video system to allow the owner to see the east coast terminal. He can see who is at the gate and unlock the gate allowing the driver to pick up or deliver a load after normal hours.