1 Route: Take bus No.914 (Changping He Ying Station-Yangfang) from Gecun, transfer to bus No.642 (Yangfang North-south exit of Anningzhuang East Road) at Yangfang, transfer to BRT at Shangdi Huandao East 105 (Shangdi Huandao East-Beijing Jiaotong University) and arrive at the National Library. Take Changping 13 Road (Guoling Town-Beiliu Village), transfer to 9 19 Road Branch Road 3 at Shuitun Market (Changping He Ying Station-Deshengmen West), and transfer to No.27 at Deshengmen West (Andingmen Outer-West Diaoyutai) to get off at Baishiqiao East. It is about 53.2 1 km. Line 3: Depart from Gecun. Transfer to No.345 (Changping North Station-Deshengmen West) at Changping Central Park, and transfer to No.695 (Times Manor North Station-Beijing West Station) at Jianxiang Bridge North to reach the National Library. About 65.5km Route 4: Starting from Tulou, take 13 at Changping (Guoling Town-Beiliu Village) and transfer to 345 at Changping Dongguan (Chaofeng 'an Village-Beiliu Village).