On December 18, Seoul Mayor Oh Sehoon is explaining the plans for the underground development of the Naebu Expressway and Bukbu Expressway at the main conference room of Seoul City Hall in Jung-gu, Seoul.
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![[Photo] Mayor Oh Sehoon Explains Plans for the Underground Development of Naebu and Bukbu Expressways](https://cphoto.asiae.co.kr/listimglink/1/2025121810322061072_1766021540.jpg)

