As we all know, some passages in the mainland's "eight vertical and eight horizontal" high-speed railway network are not completely newly built high-speed rail standard high-speed railways with a speed of 350 kilometers per hour, some are designed to speed 250 kilometers per hour, and some are using some existing railways or expanding the capacity of existing railways, which all belong to the category of high-speed rail in the broad sense of the mainland, that is, road network high-speed rail.
With the economic and social development of the mainland, the speed of some high-speed rail corridors has obviously not met the transportation needs along the line, and the reinforcement of the eight vertical and eight horizontal high-speed railway networks has been advancing in recent years, some of them have started or even been completed, and some are expected to start construction in the near future. Typical such as the passage along the river, the mainland is building a new Shanghai-Chongqing-Rong high-speed railway with a speed of 350 kilometers per hour on the basis of the original Shanghai-Hanrong railway, except for the Yichang-Chongqing section has not yet started, the other sections are already under construction.
There are also coastal high-speed railways, especially the Wenzhou-Guangzhou and Shenzhen sections, which are promoting the construction of new 350 km/h high-speed railways on the basis of the existing 250 km/h lines. Others, such as the Taiyuan-Suide high-speed railway and the Yiyang-Loudi high-speed railway, actually have lines with a speed of about 200 kilometers per hour, but they are also promoting the construction of a new high-speed railway with a speed of 350 kilometers per hour, and it is expected to be officially built around 2026.
Ningxia section of Yinchuan to Taiyuan high-speed railway
In addition, in the mainland's "eight vertical and eight horizontal" high-speed rail network, some are still 160-200 kilometers per hour lines, compared with the speed at both ends of the channel has become a "bottleneck" section, these years there are calls to build a new higher level of high-speed rail, but there is no plan to start construction in the short term. This issue will focus on introducing 4 "bottleneck" sections with similar situations, which have entered the province where they are located, and even the mainland's "14th Five-Year Plan" railway plan, and the new high-speed rail with a speed of 350 kilometers per hour is expected to land in the future!
Among them, according to the existing railway planning, the Suide to Yinchuan section of the Taizhongyin railway will be used, so that in the future, with the start of the Taisui high-speed railway, the Suide to Yinchuan section will become the bottleneck section of the entire Qingyin high-speed railway. However, in the future, the Yinchuan to Suide section is also expected to be upgraded to a high-speed railway with a speed of 350 kilometers per hour, according to Ningxia's reply to the Yinchuan to Taiyuan high-speed rail planning and other questions, the current Yinchuan to Suide section of the high-speed rail project has been included in the mainland's "medium and long-term railway network planning" first draft.
Since the medium- and long-term planning of the mainland railway mainly clarifies the development strategy, network framework, channel function, etc., the spatial layout of infrastructure is determined, leaving room for the long-term development of the railway. Therefore, when the Yinchuan to Suide section of the high-speed railway can start, the future depends on the high-speed rail included in the five-year plan of the railway, after all, most of the high-speed rail included in the five-year plan belongs to the planned start of the project.
Fujian section of Ganlongxia high-speed railway
Strictly speaking, the section from Qianjiang to Changde to Yiyang and the section from Ganzhou to Longyan to Xiamen are all bottleneck sections, and the existing operating speed is about 200 kilometers. However, because the high-speed railway from Jishou to Yiyang has not been included in the relevant national and provincial railway development plans, there is no possibility of building a new high-speed railway with a speed of 350 kilometers per hour for a long time in the future.
However, the Ganzhou-Longyan-Xiamen high-speed railway has frequently appeared in the public's field of vision in recent years, and judging from the public replies along the line, the Ganlongxia high-speed railway has not only obtained the planning support of Jiangxi and Fujian provinces, but has also been preliminarily agreed to be included in the medium and long-term railway network planning that is being revised. Fujian Province has started the preparation of the pre-feasibility study report of the project at the end of 2022, and Jiangxi Province has also started the pre-project research work in early July 2023.
Ningbo-Taizhou-Wenzhou high-speed railway
With the advancement of the new high-speed railway with a speed of 350 kilometers per hour in the coastal high-speed rail corridor, the section from Ningbo to Wenzhou via Taizhou will become a bottleneck section in the future. At present, the Tongsu-Jiayong high-speed railway at the north end of Ningbo is under construction, and the Wenfu high-speed railway to the south of Wenzhou is also promoting the start of construction, they are all 350 kilometers of high-speed rail lines, but the current design speed of the Ningbo-Taizhou-Wenzhou railway is only 250 kilometers per hour, so relatively speaking, the Ningbo-Taizhou-Wenzhou section has become a bottleneck section.
However, the implementation of the Ningbo-Taizhou-Wenzhou high-speed railway is imperative in the future, but the China Railway Group said that it will implement the Wenfu high-speed railway first, and then start the preliminary study of the Ningbo-Taizhou-Wenzhou high-speed railway in a timely manner, which shows that it is only a matter of time before the start of construction. At present, the high-speed railway has been included in the recent implementation projects of the mainland's "14th Five-Year Plan" Railway Development Plan, and Zhejiang Province has also carried out project planning research in advance.
Guizhou section of the Chongqing-Guizhou high-speed railway
Finally, there is the Chongqing-Guiyang section of the Lanzhou-Guangzhou-Guangzhou Corridor and the Baoyinhai Passage, where the design and operation speed of the Chongqing-Guizhou Express Railway between the two places is only 200 kilometers per hour, so there is also a demand for a new Chongqing-Guizhou high-speed railway with a design speed of 350 kilometers per hour. The high-speed rail is part of the mainland's "14th Five-Year Plan" railway planning in the planning and research project, this year the national railway group has started the survey and design work of the project, and the Chongqing-Guizhou railway has recently started the resumption of freight function program research services procurement, for the new 350 kilometers per hour of the Chongqing-Guizhou high-speed railway preparation, is expected to start during the "15th Five-Year Plan" period.
This article was originally written by @RailwayNagguaries, welcome to pay attention, let us pay attention to the development of China's high-speed rail and other railway transportation! (The picture is from the Internet, if there is any infringement, please contact to delete.) ）