What term describes a commercial establishment where businesses are arranged in a row with access to open-air walkways?

A "strip mall" is the correct term for a commercial establishment where businesses are arranged in a row and have access to open-air walkways. This design typically features multiple storefronts that are connected, allowing customers to conveniently walk from one store to another without the need to navigate through a large enclosed building. Strip malls often cater to convenience shopping, offering a variety of goods and services, such as groceries, dry cleaning, and fast food, making them accessible and appealing for quick visits.

In contrast, a "shopping plaza" may refer to an area that includes a strip mall but can also encompass larger retail structures or additional facilities, which might not be strictly organized in a row format. A "shopping center" is a broader term that can refer to any collection of retail stores and may include enclosed malls that do not feature open-air walkways. A "market square" usually describes an open public space where markets are held, and while it may host multiple vendors, it is not specifically designed as a lined arrangement for commercial businesses like a strip mall is.