Is there a style/name for this feature?

I reside in SF; fairly just a few older eating places (that might've been retail retailers previously), have this 2nd stage walkway, presumably for storage. Any thought what this characteristic is named in structure?

https://preview.redd.it/c7wgzcsr5kqc1.png?width=4000&format=png&auto=webp&s=b5dd9c520c569fffc0c91055a1927e5ebe35bac8

https://preview.redd.it/mamg9x9p5kqc1.png?width=4000&format=png&auto=webp&s=261bbbe3c358c3675a0959b03dccb5e1278dbd4f