> If Musk could translate underground the approach he brought to reusable rockets, Flyvberg said, he could drastically reduce the price of a given dig. The art

> If Musk could translate underground the approach he brought to reusable rockets, Flyvberg said, he could drastically reduce the price of a given dig. The article mentions that the cost of digs are prohibitively expensive. Reducing costs could help LA and the people stuck in traffic all day.