Aunt Lin, who lives in the second district of Tiantongyuan East, goes downstairs to buy vegetables at 8:30 every day, and walks about 5 minutes to Tiantongyuan East Station in the northern section of Metro Line 17, from this station, she arrives at the supermarket she wants to go to after 15 minutes, which takes less than 30 minutes in total. Before the opening of the northern section of Metro Line 17, this process took at least 1 hour.
From the first train on December 30, 2023, the northern section of Beijing Metro Line 17 (Workers' Stadium - Future Science City North) will be officially opened for initial operation, which will greatly reduce the travel time cost of residents in large residential areas such as Tiantong Dongyuan Second Community, Third Community, and Yandan Village, and "open" the subway to the doorstep, opening up the "last mile" home.
As the northern section of Line 17 ushered in the "full moon" of operation, the reporter visited the transfer station Taiyanggong Station, which is the transfer station with Metro Line 10. According to Yuan Yanmin, the mayor of Jinggang Metro Station, from its opening to January 20, 2024, the total average daily passenger volume of the northern section of Line 17 will reach 56,000, and the average daily transfer volume of Taiyanggong Station will be 28,000.
"As the only transfer station in the northern section of Line 17, Taiyanggong Station has a large average daily transfer passenger flow. In order to ensure the safety and smooth travel of passengers and do a good job in passenger service during the large passenger flow, Taiyanggong Station of Line 17 has two transfer hall floors, B1 and B2, and the transfer walking signs at the location of the transfer channel are 'customized on demand'. At the entrance of the transfer passage between Line 17 and Line 10, a '56m' walking reminder will be set up, and additional personnel will be on duty during the morning and evening rush hours to ensure the orderly and safe transfer of passengers. Yuan Yanmin said that with the opening of the new line, the "wind" of public welfare has also blown into the station. At the transfer passage of Taiyanggong Station of Line 17, the reporter found that more than 20 paintings were decorated on the walls on both sides. The authors of these paintings are from the Department of Art and Design of the School of Special Education of Beijing Union University and the hearing-impaired students of Beijing Jianxiang School. Yuan Yanmin said that this event hopes to build a display platform for hearing-impaired youth, build a bridge between hearing-impaired people and society, and call on passengers to pay attention, understand and care for diverse groups.
At Tiantongyuan East Station, Yang Tao, the head of the station area, introduced that after the opening of the northern section of Line 17, residents in many communities have benefited. The average daily passenger flow of Tiantongyuan East Station is 15,000 on weekdays, and during the morning rush hour, the passenger flow in and out of the station is larger.
After the opening of the northern section of Metro Line 17, the rail transit service capacity of the future Science City area and Huitian area has been effectively enhanced, bringing greater convenience to residents in eastern Beijing. "The opening of Tiantongyuan East Station in the northern section of Line 17 has further reduced the commuting time of surrounding passengers, alleviated the surrounding traffic pressure, and greatly facilitated the travel of surrounding passengers, especially the residents at the entrance and exit E, who can directly reach the entrance of the community after leaving the subway station. In addition, the opening of Taiyanggong Station will also promote the development of surrounding businesses and bring more people to the surrounding businesses. Yang Tao said.
Mr. Lin, a passenger who lives in Tiantongyuan, told reporters that as a 9-to-5 office worker, he usually travels by car, and the time spent is generally about an hour and a half due to factors such as traffic jams in the morning rush hour. After the opening of the northern section of Line 17, he carefully calculated an "economic account": "Compared with driving, taking the subway saves the time wasted in traffic jams during peak hours, plus fuel costs and other factors, on the basis of saving half an hour of travel time, it can also save a lot of travel costs." Mr. Lin said that since the opening of the northern section of Line 17, the experience of riding by car has also been very good, and the convenience of the subway has also made him change from a car owner to an environmental protection family of public transportation.
At present, the new line is ushering in the test of the Spring Festival. BJMTR stations have formulated security plans to strengthen the monitoring and improvement of the operation of equipment and passenger flow of newly opened stations. At the same time, we will fully consider the superimposed impact of snowfall and cold wave weather, deal with rain, snow and freezing weather in advance, and make every effort to do a good job in various tasks.
The track smoothness of Line 17 meets the standard of high-speed rail
In the track field, the track quality index TQI represents the track smoothness, and the smaller the index, the more stable the train runs. Recently, the reporter learned from BJMTR that BJMTR Line 17 has achieved the goal of a TQI value of less than 5 through the upgrade and fine-tuning scheme, marking that the track smoothness and operation performance of Line 17 have reached the high-speed rail standard, which is the first case in Beijing rail transit, which further ensures the safety of passengers while improving the comfort of passengers.
Line 17 is a north-south high-volume express line with a maximum speed of 100 km/h. The increase in the speed of subway operation provides passengers with a more convenient travel experience, in contrast to higher requirements for rail smoothness. Liang Zhongdong, Chief Manager of BJMTR Operation Engineering, said that in order to improve the smoothness of the track, BJMTR took the lead in introducing the concept of Track Quality Index (TQI) as early as 2014, and formulated a control standard that is much higher than the industry standard "Technical Specifications for Maintenance and Repair of Urban Rail Transit Facilities" with a "TQI not exceeding 14.5". Through refined maintenance, BJMTR has taken the lead in the domestic rail transit industry in terms of TQI, and has improved the travel experience of passengers by improving the track status.
In the early stage of preparation for Line 17, in order to improve the track smoothness and ensure the stability and comfort of train operation, BJMTR joint design and construction units, combined with the actual needs of metro track operation and maintenance, abandoned the maintenance method dominated by manual experience, and introduced the latest technology of pile control network (CPIII.) in the fine tuning of the track smoothness of Line 17, that is, the application of intelligent total stations in the track to build 30- The high-precision three-dimensional control network with 60 meters of paired distribution is automatically measured and transmitted in real time through the test mode of free points, with the collection of data. At the same time, the measured data can be optimized and fitted, and the fine-tuning suggestions can be automatically generated through the software to provide a more accurate maintenance plan for TQI refinement, so that the TQI fine-tuning can be upgraded from "manual experience repair" to "precise scheme repair", and the goal of the TQI value of Line 17 is less than 5 is successfully achieved.
In the future, BJMTR will continue to improve its refined management level, explore the application of new technologies and maintenance methods, improve the reliability of various service equipment and facilities, and further enhance the travel experience of passengers.
Reporter: Ma Dandan
Photo: Zhou Yujie
Editor: Gao Yuan
Executive Editor-in-Chief: Zhou Yujie
Editor-in-Chief: Chen Limin