- Source: Line 9 (Suzhou Rail Transit)
- Manila Metro Rail Transit System
- Sistem Angkutan Kereta Ringan Manila
- Sistem Angkutan Massal Terpadu Lembah Klang
- MRT Jakarta
- Metro Delhi
- Kereta Bawah Tanah Metropolitan Seoul
- Moda terpadu ramai
- Transportasi rel dalam kota di Tiongkok
- Metro Wuhan
- Changsha Maglev Express
- Suzhou Rail Transit
- Line 9 (Suzhou Rail Transit)
- Line 6 (Suzhou Rail Transit)
- Line 7 (Suzhou Rail Transit)
- Line 3 (Suzhou Rail Transit)
- Line 1 (Suzhou Rail Transit)
- Line 11 (Suzhou Rail Transit)
- Line 8 (Suzhou Rail Transit)
- Line 4 (Suzhou Rail Transit)
- Line 2 (Suzhou Rail Transit)
Line 9 of Suzhou Rail Transit (Chinese: 苏州轨道交通9号线), also known as the East-West Express Line (Chinese: 东西向快线) is a planned east–west rapid transit line in Suzhou. No official public construction date is available, however construction is expected to start before 2035. It will serve Suzhou New District, Gusu District, Suzhou Industrial Park, Kunshan, and Taicang.
Line 9 is planned as the East-West Express Line. Due to the lack of capacity on Line 1, Line 9 is to make up for rapid transit linking Suzhou New District, Gusu District, and Suzhou Industrial Park to Kunshan and Taicang.