As an important line in the "Two Ls" in the Shenyang Metro Line Network Planning, Shenyang Metro Line 9 connects the West Ring and South Ring of the Shenyang Metro Combined Ring Line. The opening of this line has improved the metro network structure in the west and south of the city. It connects the three major business districts of Tiexi, Changbai, and Olympic Sports, which is of great importance for optimizing the layout of urban rail transit, improving the comprehensive transportation system of Shenyang, and facilitating citizens' travel.