As urbanization shifts from scale expansion to quality improvement, transportation hubs, as high-frequency nodes of daily urban mobility, have transformed their public spaces from single-functional venues into important platforms that carry the image, public culture, and social life of a city. How to enhance the cultural vitality of urban public transportation hubs and convert the "non-place" public spaces of transportation hubs into cultural and attractive places is a key component in building artistic and humanistic cities. This paper conducts an in-depth and comprehensive study on the "TODTIME Gallery" public art project, and analyze its creation strategies as well as its value and significance to the public, so as to provide an operable model and governance path for the creation of art-led transportation hub spaces in China, and to promote the transformation of urban public spaces from "non-places" to "cultural and attractive" ones.