The fourteenth five year plan points out that we should speed up the construction of a transportation power, build a modern comprehensive transportation system, promote the integrated development of various transportation modes, and improve the network effect and operation efficiency. Recently, the CPC Central Committee and the State Council issued the "national comprehensive three-dimensional transportation network planning outline", which is based on the new development stage, implements the new development concept, constructs a new development pattern, provides strategic guidance for the high-quality development of railway, and further points out the direction of development.

At present, there are still shortcomings and gaps in China's railway development. The road network layout is unbalanced and inadequate, the coverage of the western road network is still insufficient, the capacity of some channels is tense, and the development of intercity and city railway lags behind; the backbone role of railway in the comprehensive transportation system needs to be improved, the integrated development needs to be accelerated, the development of multimodal transport is slow, and the collection and distribution system has shortcomings; there is a gap in the modernization of railway governance capacity, and the railway reform still needs to be deepened.

According to the outline of the plan, by 2035, a modern and high-quality national comprehensive three-dimensional transportation network will be basically built, which is convenient, smooth, economical, efficient, green, intensive, intelligent, safe and reliable. By 2035, the national railway network will reach about 200000 km. Among them, 70000 km of high-speed railway (including some intercity railways) and 130000 km of common speed railway (including some urban railways).

Vigorously promote the construction of modern comprehensive transportation system, continuously deepen the structural reform of railway supply side, improve the quality of railway development, actively promote the deep docking of railway and regional development, urbanization development, urban transportation and other planning, and promote the "four network integration" of trunk railway, intercity railway, urban (suburban) railway and urban rail transit.

Build a high-speed railway network with "eight vertical and eight horizontal" high-speed railway main channels as the framework and regional high-speed railway connection, promote the construction of a comprehensive three-dimensional transportation network as the main framework, and realize the high-speed railway access and coverage of provincial capital cities and cities with a population of more than 500000, as well as efficient, convenient and smooth inter regional communication. A general speed railway network with several vertical and horizontal general speed railway main channels as the skeleton and regional general speed railway connection will be constructed to connect cities with a population of more than 200000, resource rich areas, major cargo distribution centers, major ports and ports. Build a fast and integrated intercity and city railway network, create a 2-hour intercity traffic circle, and promote the formation of a 1-hour city traffic circle.

In the future, China will vigorously carry out infrastructure construction planning, sand aggregate as basic raw materials will also usher in a strong momentum, and the demand for sand will continue to maintain at a high level. According to the prediction of relevant data, the demand for sand and stone will be at a high level of 19-20 billion tons in 2021. It can be seen that driven by the long-term planning of 2035, the demand for sand and stone aggregate will grow steadily, and the sand and stone industry will usher in a "Golden Age".

Construction and environmental protection complement each other, and green development is also the top priority. In China's railway construction, a large number of efficient, environmental friendly, energy-saving and convenient transportation machinery and equipment are urgently needed. The KLF series crawler impact mobile crushing station developed by Chongqing Longjian group has excellent structure, stable performance, flexible mobility, energy saving and environmental protection, high output, high reliability, high quality granulation, low energy consumption, durability and high cost performance. For the construction of railway and infrastructure, it can provide high-quality sand and stone conveniently and quickly.

Chongqing Longjian Industrial Group Co., Ltd. is a high-tech enterprise integrating R & D, production, sales and service, specializing in the design, manufacture, sales and service of mining machinery and equipment, providing customers with solutions for the production line of complete sets of stone and sand making equipment. Products and equipment are widely used in mining, road and bridge engineering, earthwork engineering and construction waste recycling and other fields.