In late April, the high-speed ring road of the "Made in China" test drive is about to be put into operation. According to the introduction of the China Railway Fourth Bureau, the total cost of the high-speed ring road of the test site is about 46 million yuan, with a total length of 3,036.684 meters and a vertical height difference of about 5 meters. The designed maximum speed is 160 kilometers per hour, and the total asphalt paving thickness is about 18 centimeters. It is expected to be put into operation in July.
The test track is a large-scale dedicated infrastructure for quality, performance and durability testing of new vehicles and special vehicles during the development phase. The high-speed loop is the core project of the test track and is used to test the various conditions of the vehicle at high speeds. Since the high-speed loop curve section is a hemispherical curved surface, the ordinary plane asphalt paver cannot be paved. In the past, the high-speed loop asphalt paving of the domestic test track was constructed by a foreign construction company.
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