The company said 300,000 people in the second-largest U.S. city have been waiting to use its robotic ridehail service – twice the number of paid weekly rides it provides.

The expansion comes eight months after Waymo began offering rides in Los Angeles to a limited group of passengers chosen from a waiting list that had ballooned to more than 300,000 people.

Waymo closed a $5.6 billion funding round in October to expand its robotaxi service across the U.S. The autonomous vehicle venture is owned by Google parent Alphabet, which led the series C investment in Waymo, alongside earlier backers including Andreessen Horowitz, Fidelity, Perry Creek, Silver Lake, Tiger Global and T. Rowe Price.