Английская Википедия:Boring Test Tunnel
Шаблон:Update Шаблон:Short description Шаблон:Use mdy dates Шаблон:Use American English Шаблон:Infobox tunnel The R&D Tunnel, also called the Hawthorne Test Tunnel or Boring Test Tunnel, is a Шаблон:Convert tunnel in Hawthorne, California, for testing hyperloop and "loop-based transportation".[1] It was completed by The Boring Company in late 2018. The single-bore tunnel was constructed during 2017 and 2018 using a Шаблон:Convert diameter tunnel boring machine, giving a finished Шаблон:Convert internal diameter.
Route
Шаблон:Boring Test Tunnel Most of the route runs outside and set back from the perimeter of Hawthorne Municipal Airport, with a very short section under the corner of the airport fence, without going under the runway.[2]
The tunnel starts between the Dominguez Channel storm drain and Crenshaw Boulevard at an entrance pit constructed on parking lot land owned by SpaceX. A short straight section heading northwards is followed by a Шаблон:Convert curve westwards under West 120th Street, then a long straight tunnel, a slight curve and a final short straight to the Exit Shaft. The midpoint of the tunnel is planned to connect with a very short northwards spur to a small car parking system-style car elevator leading up inside a residential garage behind a house at 3834 West 119th Place.[3]
Timeline
On December 17, 2016, Elon Musk, the founder of the Boring Company, stated that he was frustrated with traffic jams, and would start building a tunnel.[4] By April 2017, The Boring Company had obtained a second-hand tunnel boring machine, transported the machine to Hawthorne, and had it repainted in Boring Company colors.[5]
On January 31, 2018, The Boring Company acquired the land around a family house at 3834 West 119th Place for $500,000.[6] On May 9, 2018, The Boring Company acquired land on the corner of West 120th and Prairie Avenue for $2 million, purchasing the corner plots 309 and 308 at 12007 Prairie Avenue[7] And Plots 304‒307 behind.[8]
On October 5, 2018, the Hawthorne City Council granted an easement for up to Шаблон:Convert of tunnel, in exchange for a structural encroachment fee of $2.5 million. Permission for the first Шаблон:Convert of tunnel under SpaceX's own land had been obtained earlier.[9]
On October 17, 2018, in preparation for opening "The Brick Store", the company applied for permission to paint the building at 12003 Prairie Avenue in The Boring Company black-and-white corporate colors.[10]
An opening ceremony for the test tunnel was originally scheduled for December 10, 2018,[11] then moved to December 18, 2018.[12]
Operation
During the launch day on December 18, 2018, cars operated using guided busway-style side-facing guide wheels. This fleet of Tesla Model X vehicles traveled at up to Шаблон:Convert.[13]
References
Шаблон:Reflist Шаблон:Elon Musk series
External links
- Английская Википедия
- The Boring Company
- Tunnels in Los Angeles
- Transportation buildings and structures in Los Angeles
- Road tunnels in California
- 2018 establishments in California
- Tunnels completed in 2018
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