Core Points - The Beijing Infrastructure Investment Company has announced the environmental impact report for the connection project between the Yizhuang Line and Lines 5 and 10, which is set to commence construction by the end of this year [2][5] - The project aims to directly connect the Yizhuang Line with Line 5 and facilitate transfers with Line 10, significantly improving transit efficiency and service levels [3][4] Project Details - The connection project will span approximately 2.7 kilometers, with 2.2 kilometers of new underground construction and 0.5 kilometers utilizing existing lines, all of which will be underground [2] - The construction methods will include shield tunneling, open-cut, and deep excavation, with no blasting operations involved [2] - The project will utilize B-type trains with a six-car configuration to maintain consistency with the existing lines [2] Expected Benefits - The project is expected to reduce the transfer passenger flow at Songjiazhuang Station by approximately 10,000 during peak hours, alleviating congestion [4] - An estimated 71,000 daily passengers will benefit from the direct connection, with 36,000 changing to same-platform transfers, reducing transfer distances by about 150 meters [4] - Overall, over 170,000 daily passengers will benefit from the project, accounting for approximately 88% of the total average daily transfer volume at the station [4] Timeline - The project is scheduled to be completed and operational by December 2028 [5]