Core Viewpoint - The construction progress of the Beijing Rail Transit Phase III plan is accelerating, with the second environmental impact assessment (EIA) for the Yizhuang Line to Line 5 and Line 10 connection being publicly announced, indicating a planned start of construction by the end of this year and completion by 2028 [1][5]. Group 1: Project Details - The EIA report details the specific route of the new line, which will connect the Yizhuang Line at Xiaocun Station to Line 5 at Songjiazhuang Station and Line 10 at Chengshou Temple Station, addressing the inconvenience of transferring for passengers [3]. - The connection line from Xiaocun Station to Songjiazhuang Station will be approximately 2.7 kilometers long, consisting of 2.2 kilometers of new underground construction and 0.5 kilometers utilizing existing lines, with no new or expanded stations being built [3][5]. - The project is expected to have a maximum operating speed of 80 kilometers per hour, with train configurations consistent with the Yizhuang Line and Line 5, using six-car B-type trains [5]. Group 2: Timeline and Impact - The project is planned to start construction by the end of this year and aims for completion by June 2028, which would be an early start compared to the initial annual construction plan that did not include this line [5]. - The connection will significantly benefit residents along the route by improving transit options and reducing transfer inconveniences [5].