What Lyft’s IPO means for cities

As the fast-growing underdog, Lyft currently has 38 percent of the U.S. market share, which equals about 18.6 million “active riders,” according to company data. The company also only currently operates in the U.S. and Canada, in about 350 cities, compared to Uber’s global foothold.

Lyft now faces some potential advantages—and some serious challenges.