Around 200 cities worldwide have some form of fare-free transit, whether fully free or just free for certain user groups, in certain zones or at certain times of day. As of the book’s publication, there were 97 cities and towns with fully fare-free public transit (the book uses the term fare-free transit because, of course, transit costs money whether fares or taxes pay for it).
read more in Next City, May 25, 2018.