Welcome to Roblox City Subway, or RBCMTA for short. RBCMTA is a mass rapid transit company that serves throughout ROBLOX. Follow us on Twitter: @RBCMTA Map: /a/Q1Jdy8o (via Imgur) RBCMTA offers heavy rail, light rail, commuter rail, bus, freeway, waterbus, and Uber transportation throughout the entirety of ROBLOX.