# A Review of Road Design for Wind Farms in China
## 8 Conclusions  
The development of new power systems based on new energy has become an important mission of the current power industry. Wind power plays an important role in the development of the new energy era, and wind farm roads are also the early preparation for the construction of wind power facilities, and also an important guarantee for the successful implementation of wind power facilities. Based on the rapid development of the wind power industry in China, this paper reviews the research achievements of domestic and foreign scholars in the field of wind farm road design and summarizes them. It mainly includes the following points:  
1. Wind farm route selection is a comprehensive evaluation method based on field reconnaissance and back-office multi-view CAD-aided mapping technology. Although it can realize the automation of transportation road design to a certain extent, it is difficult to meet the road demand of complex macro-transportation environment of wind farms due to the lack of abstraction of view split projection and overall expression ability of multi-dimensional space. Therefore, it is necessary to improve and optimize the route selection method. According to the existing experience of road construction in wind farms and combined with advanced survey technology and algorithms, an intelligent route selection model for wind farm roads is obtained. By comparing the route selection optimization methods, it is concluded that the intelligent route selection model is the best method for route selection optimization. 2. The road route design of wind farms is mainly faced with complicated and changeable terrain conditions. Fan units have special requirements for roads due to their oversize and overweight features. Relevant standards and codes are not perfect in these three aspects. Several calculation models for the widening of wind farm roads, minimum radius values under different restrictions, calculation models, and values for longitudinal slope and the vertical curve index are listed in this paper, and a comparative analysis is made. It is concluded that the method for selecting the radius of a circular curve with widening as a restriction condition is more suitable for wind farm roads. 3. Soil and water losses in wind farms are characterized by the diversity of erosion, which is characterized by the combination of point erosion, line erosion, and area erosion. The time and space distribution of water and soil losses are uneven. The period of water and soil losses mainly concentrates on the construction period, and the period of severe water and soil losses mainly occurs in the concentration period of rainfall each year. Water and soil losses mainly occur in the fan equipment area and road engineering area. Because most inland wind farms are built in mountainous areas, the climate in mountainous areas is complex and changeable, and the local microclimate characteristics are obvious. Meteorological factors, such as rainfall and air temperature, do not have regularity. Therefore, comprehensive zoning of wind farm water and soil loss risk should be carried out by taking meteorology, geography, soil, vegetation, and other factors into consideration. Based on the previous scholar's prevention measures, the water and soil loss prevention measures system should be put forward. Conceptualization, L.S. and C.-z.W. ; methodology, Y.-d.W. and F.-k.Y. ; formal analysis, Y.-d.W.; investigation, Y.-d.W. and F.-k.Y. ; writing--original draft preparation, Y.-d.W. and F.-k.Y. ; visualization, L.S. and C.-z.W. ; supervision, L.S. ; funding acquisition, L.S. All authors have read and agreed to the published version of the manuscript. This research was funded by [General Project of 2021 Basic Scientific Research Projects of Colleges and Universities of Liaoning Provincial Department of Education] grant number [LJKZ0719], [Dalian Science and Technology Innovation Fund Project] grant number [2021]J11 CG001] and [The Third \"Blue Talents Project\" of Dalian Ocean University]. Not applicable.