Survey and design of the line as the core of the overall work of railway construction, is a prerequisite for determining the project investment feasibility, rationality and operation efficiency. High speed railway construction standards higher, more stringent security requirements, environmental conditions more complex, to the line survey and design has brought new challenges. The traditional reconnaissance techniques based on artificial field survey and two-dimensional design have insufficient information perception and environmental cognition ability, low efficiency and long cycle, which can not meet the urgent needs of rapid development of railway construction. Therefore, it is an urgent problem to realize the rapid perception and high standard line design of long distance, large scale and multidimensional factors.

Chinese railway is China Railway First Survey and Design Institute Group Co. Ltd. after more than 10 years of research, will be the first real 3D environment sensing technology into the railway survey and design, through survey and design of the line construction, interactive 3D virtual full stage line information model and all temporal railway line design, line automatic three-dimensional modeling and analysis of a series of efficient management based on the key technology, build a 3D design platform of high speed railway real, formed a set of new high-speed railway survey and design technology system.

The project authorized 37 invention patents, 48 software copyrights, published 4 monographs, 232 papers, the formation of 2 national standards and 2 industry standards, won the provincial science and technology progress prize 3, has formed a complete set of China's independent intellectual property rights theory, technology system and system platform, a strong impetus to the development of engineering technology of high speed railway line in China, enhance the international competitiveness of China's Railway Survey and design industry, the overall technology has reached the international advanced level of the similar.

The project results have been extended to the domestic 80% Railway Survey and design units, used in Lanzhou, Shanghai Kunming, West into more than 10 major national high-speed railway construction, Kenya, Ethiopia, Saudi Arabia and other overseas railway project. Over the past three years to create economic benefits 2 billion 690 million yuan, profit of 330 million yuan, the national "four vertical and four horizontal" high-speed railway network construction has made important contributions, and provides technical support for "The Belt and Road" the implementation of the national strategy, is of great significance to the railway "going out".