The Western Suburb Line of the Beijing Subway (Chinese: 北京地铁西郊线; pinyin: běijīng dìtiě xījiāo xiàn) also called the Western Suburb Branch Line (西郊支线) is a light rapid transit line planned to be built in Haidian District of Beijing. It will run west and north from Bagou on Line 10 to the Fragrant Hills – a total length of 9.4 km.