Oklahoma City, OK - 600,000 inhabitants (~1 million in metropolitan area)

Modern streetcar (tram) system, construction started in Feb 2017, opened 14 Dec 2018:

~7.7 km single-direction 8-shaped loop, plus 3.2 km central loop (Bricktown loop) which share most of the main loop's tracks.
- 22 single-direction stops

OKC Streetcar (Official Website)

Oklahoma City Streetcar Project (Official Site)

EMBARK - Oklahoma Transport Agency

Oklahoma City Streetcar at Wikipedia