Lexi Expressway is a highway connecting Leshan City and Liangshan, which is of great significance for promoting regional economic development and improving local traffic conditions. At present, the highway in Sichuan area directly to Liangshan Prefecture and Panzhihua City is only a Iaxi Expressway, but because this line is the shortest route connecting Sichuan to several major tourist resorts in Yunnan, and there is only a two-way lane, so the road load is very high, and the traffic jam is more serious during holidays. The emergence of the Lexi Expressway will greatly alleviate the traffic pressure of the Iaxi Expressway.
The Lexi Expressway is about a kilometer long and is designed as a two-way lane. The highway is designed for a speed of kilometers per hour and a width of the roadbed in meters. Due to the complex topography along the line, including many fault fracture zones and landslide areas, bridges and tunnels are used to avoid poor geological conditions. The ratio of bridges to tunnels in the whole line is up to including bridges and tunnels.
In the engineering feasibility scheme, the maximum altitude of the route and the mileage are shortened by "pressing the top and lifting the bottom", so that the ice and snow section is reduced to only one kilometer, and the slope is controlled at the same time, ensuring the all-weather traffic capacity of the highway throughout the year. The construction of the Lexi Expressway has a far-reaching impact on the main settlements of the Yi nationality in the hinterland of the Great and Small Liangshan Mountains, and it will end the history of Meigu, Leibo and Zhaojue counties not being connected to the expressway.
The opening plan is divided into stages: At the end of the year, the section from Jiukou Township in Meigu County to Zhaojue County was completed and opened to traffic; In the year, Mabian County to Gudui interchange kilometers was completed and opened to traffic; The whole line was completed and opened to traffic. As can be seen from the figure below, the direct beneficiary areas of the construction of Lexi Expressway are the eastern and southern areas of the Chengdu Plain. Among them, the biggest beneficiary is Leshan City, and Leshan, as a city rich in tourism resources, will bring huge benefits.
This expressway does not bring a reduction in the cost of tolls. More than the ratio of bridges and tunnels, the whole process of bridges, tunnels, and as shown in the figure below, the Duxiang high-speed line that connects to Xichang at Zhaojue with Lexi Expressway is very serious. I don't understand why today's tunnel and bridge technology can not be straightened at high speed? In the end, the cost of passage will not be lower than that of the Iasi Expressway, but it will save a certain amount of time for cities in southern and eastern Sichuan.
According to the satellite map, although this road passes through mountains and valleys, it is not blocked by major rivers. I don't know why this section is so tortuous and winding, for the level of China's infrastructure that can build dozens of kilometers of tunnels today, it is definitely not the ability to presumably have its special reasons. I don't know if anyone is clear? Hope to answer your questions!