See this post by Waze founder Noam Bardin for more details
"For many drivers, Waze is the go-to app for circumnavigating pesky traffic jams. Now, the Alphabet-owned company is making a risky move into ride-hailing — or, more specifically, carpooling. On Wednesday, Waze announced the nationwide rollout of Waze Carpool, a dedicated app that lets drivers offer rides to people who are traveling on a similar route.Google’s Waze is making a big, nationwide bet on carpooling -- The Verge
First launched in the Bay Area in 2016, Waze Carpool has since expanded to five additional states in the US as well as Waze’s country of origin, Israel. The company says it wants to leverage its “superior routing technology” to help commuters fill empty seats in their cars and, in the process, hopefully reduce the number of cars on the road. And with a community of 100 million active monthly users worldwide, Waze Carpool has big ambitions about its impact on daily transportation habits."