There were concerns that the project of a high-speed transportation tunnel might interfere with the area's rail projects.
Joining him on stage was Steve Davis, a top executive at Musk's aptly named underground transit venture, the Boring Company.
Musk, the Silicon Valley high-tech tycoon who founded the Tesla Inc. electric auto maker, also said he would offer free trips through the first two research tunnels he completes to get public feedback before proceeding with a larger system.
Much of the focus of the presentation was to assure the public that the Boring Company's efforts would not be disruptive to the public or heavily stress the city's existing highway systems.
Fares for Loop could cost as little as $1 per person, Musk suggested, though the actual cost will likely depend on a number of factors, and require input from multiple local and regional agencies.
Musk's celebrity status preceded him, as some visitors pushed and shoved their way into the crowded hall before the event began.
The Boring Company
First, Musk plans a 2.7-mile test tunnel - one he's already gotten an exemption from the city to do without an environmental impact review. Musk's aviation company SpaceX has got approval from the City of Los Angeles to build The Big Falcon Rocket, or BFR, which will be used to explore Mars - a goal that Musk hopes to accomplish by 2022.
Musk's presentation got underway 25 minutes behind schedule as he arrived late, which he said was due to traffic.
But Musk denied trying to take any shortcuts, saying even with the waiver, Boring faces "600 pages of permits that would be required for this tunnel". The project would involve hundreds of entrances where travelers in pods could descend to the network of tunnels that will shuttle them at high speeds across the city. Musk said, "If you can build a tunnel in L.A., you can build a tunnel anywhere", concerning the numerous challenges the test tunnel would need to overcome in the city, including the regulations, oil fields, methane gas, and seismic conditions.
"You won't hear us, you won't see us, you won't feel us".
Boring says the tunnel would serve as an experimental proof-of-concept site to demonstrate ideas for a traffic-easing system Musk wants to build to rapidly whisk individual cars and small groups of pedestrians from place to place beneath the surface. On Thursday night in Brentwood, Elon Musk explained his plan to alleviate traffic.
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