Tesla founder, Elon Musk, has shown a section of underground tunnel beneath Los Angeles that he says is the first step in revolutionizing travel. It would allow cars to travel at speeds of more than 200 kilometres an hour. But it's slow progress as CGTN's Phil Lavelle reports from LA.

Here's the problem. And here's the solution.

ELON MUSK, FOUNDER 'THE BORING COMPANY' "It will be smooth as glass."

A vision of the future. At least, it's Elon Musk's Officially revealed on Tuesday. A stretch of tunnel beneath the busy streets of Los Angeles.

ELON MUSK, FOUNDER 'THE BORING COMPANY' "You can weave the Boring Company system of tunnels into the fabric of a city without changing the character of a city. You're not going to get into anyone's way. You're not going to spoil anybody's view."

This is a test route. - just over a mile long. And this - the end goal. Passengers whizzing along at speeds of up 155MPH, or 249KMH.

ELON MUSK, FOUNDER 'THE BORING COMPANY' "Wouldn't it be incredible if you could travel through LA, New York, DC, Chicago, Paris, London, anywhere at 150 miles per hour? It would be phenomenal."

A work in progress - but it's getting there.

ELON MUSK, FOUNDER 'THE BORING COMPANY' "You can literally build enough tunnels to transport everybody in the United States in LA. There is no limit."

PHIL LAVELLE LOS ANGELES "Elon Musk is trying to solve a very real problem, what his company calls LA's 'soul destroying traffic'. Even though most major cities suffer traffic problems, LA's is particularly bad. At times, you can spend hours in cars just like now, and yet feel like you're going nowhere. In fact, one study claiming Los Angeles is the most congested city in the world."

JOE LYOU COALITION FOR CLEAN AIR "It's as bad as you can get."

LA given that title six years in a row now by transport analysts, INRIX, claiming motorists spent an average of 102 hours on the freeways during rush hours last year, making it worse than both Moscow and New York City, Californian neighbor, San Francisco, in fifth place.

PHIL: "Let's say this all comes to fruition - what kind of difference are they going to make? How much does LA really need these tunnels?"

JOE LYOU COALITION FOR CLEAN AIR JOE: "Oh God, well the sad thing is, you look at the plans, things are just going to get worse in Los Angeles over the next few years, decades. So anything will help, right? We just have to do public transportation, alternative transportation and get people out of cars. So can they help? Yes. Is it going to be easy? No. It's going to be expensive, probably. Part of the solution? I would hope so."

The project has hit some snags along the way. The inevitable delays with a project this ambitious.

ELON MUSK, FOUNDER 'THE BORING COMPANY' "The fastest tunnelling machine in the world right now is 14 times slower than a snail."

And a legal case forcing Musk to scrap a chunk of the tunnel under one affluent neighborhood. But the dream - very slowly, now - becoming a reality. One mile at a time. Phil Lavelle, CGTN, Los Angeles.