Legal analysis: The Taiyuan subway logo uses the word "Tai" as the creative origin, and is equipped with a chip outline that is both square and round. The word "Tai" is more unique. The yellow color means the descendants of Yan and Huang. Subway signs not only carry the city's image and spirit, but also inherit the city's history and culture, and also show the city's future. The Taiyuan subway logo expresses a kind of cultural confidence.

Legal basis: "Trademark Law of the People's Republic of China" Article 9 The trademark applied for registration shall have distinctive features that are easy to identify and shall not conflict with the legal rights previously obtained by others. The trademark registrant has the right to indicate "registered trademark" or registered mark.