After this diagram adjustment, China Railway Shenyang Group Co., Ltd. has optimized the operation structure of HS trains in Shenyang-Dandong HSR, adding EMUs such as D7605/7608 (Shenyang to Dandong), D7675/7676 (Shenyang to Benxi) and C1128/1125 and C1126/1127 (Benxi to Tongliao). At the same time, it changed the "weekend operation" of D7634/7639 EMU (Dandong to Shenyang) to the "daily operation", further increasing the operation frequency of the EMUs. After the implementation of the new diagram, 37.5 pairs of EMUs are put into operation in Shenyang-Dandong HSR. The shortest headway between trains is only 5 minutes, realizing operation in a bus pattern.
At the same time, China Railway Shenyang Group Co., Ltd. also optimized the train operation structure of the Chengde-Shenyang section of Beijing-Harbin HSR, which was opened at the end of last year. According to the passenger flow and social demand, the operating sections of 2.5 pairs of HS trains between Shenyang and Chaoyang/Fuxin were extended. At present, 21 pairs of EMUs run in the Chengde-Shenyang section of Beijing-Harbin HSR, including 6 pairs of mid-distance and long-distance HS trains.
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