北京3条轨道交通线路有了新进展

Group 1 - The recent announcement from Beijing's public resource trading service platform indicates that the construction of three new metro lines is in the preparatory phase, with bidding plans for temporary electricity supply expected to be released next month [1][5] - The first phase of Metro Line 3, which opened in December last year, will extend eastward beyond the currently operational section, adding approximately 6.4 kilometers and five new stations, facilitating interconnectivity with R4 and M101 lines [1][3] - The section from Dongba North Station to Gaoxin Zhuang Station on Line 3 will include four new stations, with the Dongba North Station serving as an interchange with Line R4 [3][5] Group 2 - Metro Line 12, which also opened in December last year, is set to extend from Dongba North Station to Dongba North Street Station, with the bidding plan for the 28th contract segment covering this extension [2][5] - The construction of the Northeast Ring Railway, specifically the segment from Guanghua Road to Beijing Chaoyang, has also announced a temporary electricity supply bidding plan, with the initial construction covering approximately 7 kilometers [6][8] - The bidding announcement for the Northeast Ring Railway is expected to be released on the 5th of next month [8]