Elon Musk isn't the type of man who waits around for a problem to fix itself.

After being stuck in heavy traffic in December, the billionaire came up with a plan to create a giant tunnel under Los Angeles to ease congestion. Am going to build a tunnel boring machine and just start digging...', he tweeted. Musk has now tweeted an image of what appears to be a tunnel boring machine (TBM) that many believe will do just that - and his Space X firm has started digging a large trench near its Hawthorne HQ to test the machine.

The trench reportedly measures 30 feet (9 metres) wide, 50 feet (15 metres) long, and 15 feet (4.5 metres) deep.

February 4 2017 - Musk tweets a picture of what appears to be a piece of tunnel boring machinery with the caption 'Minecraft'.

Each machine is fronted by a 'cutterhead' - a huge, circular metal face interspersed with sharp discs.

The cutterhead is forced under immense pressure against soil or rock using a powerful hydraulics system to tear away at the material.

January 25 2017 - Musk tweets: 'Exciting progress on the tunnel front.

Plan to start digging in a month or so.' In response to a follower asking where he plans to dig, Musk tweets: 'Starting across from my desk at Space X.Musk has started two transportation related companies - Tesla for electric cars and Space X for launching into space.He has also initiated the development of Hyperloop, a proposed method of travel that would transport people at 745mph (1,200km/h) between distant locations.https://goo.gl/forms/Xv Wqewxbr HIlgf M43Reminder: Translations are done by regular users. If no one can or want to translate, there won't be subtitles in your language.If you hate waiting, that may be reason enough for you to learn English.When Musk first announced his plans to bore a tunnel to his Space X offices in Los Angeles, it was hard to know if he was simply venting his frustrations about being stuck in traffic.