Elon Musk has posted a new video and several pictures of equipment that will be used to start digging tunnels beneath Los Angeles. There's a picture of boring machine segments that are being lowered into the start tunnel at SpaceX, a front view of the tunnel, an inside view of the tunnel, and a picture of the front of the boring machine that will cut through underground rock. Additionally, the video shows a version of the "skate" that will cary cars through the tunnel at a speed of 125 mph. CNBC reports: The project is one of Musk's latest ventures, which was inspired by a desire to alleviate "out of control" traffic in Los Angeles. He aims to first dig a tunnel from SpaceX headquarters in Hawthorne, California, to the nearby Los Angeles airport. Musk frequently flies from Los Angeles to the San Francisco area, where he runs Tesla. Eventually, he envisions a deep, multilayered network of underground tunnels spanning the city.