Ever wonder just how big a city can get without a fixed-route transit system? So has YouTuber Classy Whale, who recently visited Arlington, Texas — the largest city in the United States without a public transit system — to find out. Streetsblog USA published Classy Whale’s video account of the journey, including some touch-and-go runs on the city’s app-based microtransit (ie. vans run by a New York-based software company), “and an epic quest to eat some Ethiopian-Texan barbecue” all in one…