Business Street Sunken Courtyard Effect

Quick answer：

The 'Business Street Sunken Courtyard Effect' refers to the architectural design feature where a courtyard is situated below the ground level of a commercial street. This design often aims to create a serene and inviting space within the bustling urban environment, providing a peaceful retreat for pedestrians and a unique visual element to the street. The effectiveness of such a design depends on factors like natural lighting, ventilation, and integration with the surrounding urban context.