What distinguishes a linear terminal from a standard terminal?

A linear terminal is characterized by its elongated design, which is specifically structured to facilitate passenger flow along a single, extended axis. This design often incorporates curvilinear elements to enhance the aesthetic appeal and functionality of the space. The elongated shape allows for a more streamlined passenger experience, where boarding and disembarking can occur in a more organized manner.

In contrast, a standard terminal may not necessarily follow this linear approach and could have a more compact or varied layout, which might include multiple levels or sections that aren't aligned in a singular direction. The emphasis on a long corridor in the linear terminal helps in reducing the distance passengers need to travel, offering convenience and efficiency.

While the other options describe specific features that might appear in various terminal designs, they do not capture the essence of what makes a linear terminal distinct. For instance, circular sections might be more typical of certain modern designs, but they do not define the linear terminal format. Similarly, utilizing only one long corridor is a characteristic but doesn’t encompass the overall identity of a linear terminal, and multiple levels can be found across various terminal types, including standard terminals.