There were concerns that the project of a high-speed transportation tunnel might interfere with the area's rail projects.
Musk says he's eager to get public input.
"And if you could have hundreds of tunnels and small stations throughout the fabric of the city without even the city appearing different, you could solve the transport problem", Musk said.
It has been billed as an opportunity to learn about Musk's "vision to alleviate soul-destroying traffic through Loop, a zero-emissions, high-speed, underground public transportation system!"
Musk's celebrity status preceded him, as some visitors pushed and shoved their way into the crowded hall before the event began.
According to plans submitted to the L.A.'s Department of Engineering, a full, future system - called the Loop - would extend from Long Beach Airport to the San Fernando Valley along the 405 Freeway, offering short routes from Los Angeles International Airport to Dodger Stadium, and out to the beaches in Santa Monica and the South Bay.
Musk's presentation got underway 25 minutes behind schedule as he arrived late, which he said was due to traffic.
Musk launched his foray into public transit after complaining on Twitter in December 2016 that clogged traffic was "driving me nuts", vowing to "build a boring machine and just start digging".
Resistance to his tunneling project marks a somewhat new type of challenge for Musk. Davis said Musk has challenged his team to match the digging pace of a snail (0.03 MPH), and get up to 1/10th of the average walking speed of a human at about 0.3 miles per hour - compared to its current top speed of about 0.003 miles per hour. Opponents say the exemption Boring seeks from a lengthy environmental review of the Los Angeles test tunnel violates state law forbidding such waivers for large-scope projects on a piecemeal basis.
SpaceX and The Boring Company CEO Elon Musk has for the first time revealed his concept for a personalised mass transit system or "Loop" that will carry 16 people and travel at 240 km per hour for a fare of just $1.
The test tunnel will stretch almost three miles along Sepulveda on LA's Westside, one of the most traffic-congested parts of the city. "You won't even know we exist", Musk said. He later tweeted that he will be presenting and taking questions about The Boring Company's plans for Los Angeles.