Petrol stations car service bay, car wash entrance are being fitted with roller shutter doors for not only security and beauty but also to allow movement of people and goods through a small door on the big roller shutter called wicket door.
these door is usually in use when the car service bays are not in use but can still allow entry of people and small good when the main big door is closed.
These doors can be automated to operate under electricity or fitted with gears to ease opening and closing cycles since the door is big and has more weight.