The Supreme Court on Wednesday upheld a lower court ruling that ordered the Seoul city government to pay usage fees to the national railway authority for a public park built over a railroad. The top court made the ruling in a lawsuit filed by the Seoul city government seeking to nullify a usage fee of 42.1 billion won ($29.8 million) imposed by the Korea National Railway, a public entity affiliated with the transport ministry, for the use of the Gyeongui Line Forest Park site. The court said it is difficult to recognize that the Seoul city government has the right to occupy or use the park site free of charge or it holds a legal position to justify such occupation or use. Gyeongui Line Forest Park, a 6.3-kilometer linear public park in the western ward of Mapo, was built between 2008 and 2016 over former above-ground railroad tracks after portions of the Gyeongui Line were moved underground. Due to its popularity, the park is also dubbed "Yeontral Park." In 2010, the Seoul city government and the Korea National Railway signed an agreement on the former's free use of the state-owned land.