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Source title: Approximately 1,000 kilometers of the newly started “Beijing-Tianjin-Hebei on Track” project will be basically completed by 2025
On the 16th, the National Development and Reform Commission held a periodic press conference in December to present the economic operations and respond to hot topics. Regarding the construction of intercity railways of concern to all parties, press spokesman Meng Wei noted that during the period of the “XIV Five-Year Plan” in the three main regions of Beijing-Tianjin-Hebei, the Yangtze River Delta and Guangdong-Hong Kong-Macao Greater Bay Area, new intercity and urban (suburban) railways are projected Approximately 10,000 kilometers, by 2025, a 1-2 hour travel circle of urban agglomerations and a commuter circle of metropolitan areas will be basically formed 1 hour, and will basically complete Beijing-Tianjin-Hebei, Yangtze River Delta and Guangdong-Hong Kong-Macao Greater Bay Area on the track.
This year, the National Development and Reform Commission, together with the study of the “XIV Five-Year Plan”, proposed to include the three main regional and urban (suburban) railroads as important projects in the “XIV Five-Year Plan” to promote construction in general. . Comprehensive planning support, development needs, depth of preliminary work, execution of funds, operational efficiency and other factors, together with the China National Railway Group and relevant places, analyzed and formed a list of renewable projects during the last three years. There are more than 70 new projects that will start with a total mileage of more than 6000 kilometers. .
Among them, in the Beijing-Tianjin-Hebei region, about 1,000 kilometers of recently started projects will accelerate the construction of the “four vertical, four horizontal and one ring” channel pattern, forming a “one-hour commuter circle” between the central city of Beijing and Tianjin, the new city, and the satellite city. Jinbaotang “1 hour roundabout”.
Intercity rail is different from high-speed rail and subway. The high-speed train is mainly used for interregional travel, and the speed of the newly built high-speed train is generally 250 kilometers or more; the metro is mainly used for passenger travel in the city center, and the speed is generally 80 to 100 kilometers per hour. At the end of 2019, the operating mileage of the three main regional trunk lines was approximately 24,000 kilometers, and the density of the highway network reached 2.6 times the national average; the operational mileage of urban rail transit was almost 3,400 kilometers, which represents 61.2% of the country. However, in comparison, the development of railways in urban areas (suburbs) is still relatively lagging, which affects the efficiency of the metropolitan rail transit network to some extent.
Meng Wei introduced that urban (suburban) railways are mainly implemented in central cities in economically developed and densely populated metropolitan areas, connecting urban areas and suburbs and surrounding satellite cities, micro-centers and other groups of cities, focusing on meeting the needs of the circles of one hour commuters for quick access and travel. In principle, the distance between stations should not be less than 3 kilometers, and the lines should connect as much as possible to groups of cities of 50,000 inhabitants or more, important industrial parks and tourist attractions.
“On the one hand, avoid building intercity railways on high-speed railways. The design speed of intercity railways should be 160-200 km / h. If they are built at a speed of 350 km / h, intercity railways can take over the function of trunk lines, which will make it difficult to meet important points along the line. On the other hand, avoid building intercity railways in subways. If a large number of underground laying methods and small spaces between stations are used for inter-city railways crossing urban sections, it will not only greatly increase the cost of the project, but also reduce the operational efficiency, and it is difficult to meet the requirements of the interurban railway. Fast travel needs, “Meng Wei explained. Our reporter Cao Zheng
