MBTX meaning in Regional ?

Answer:

What is Massachusetts Bay Transportation Authority mean?

The Massachusetts Bay Transportation Authority (abbreviated MBTA and known colloquially as "the T") is the public agency responsible for operating most public transportation services in Greater Boston, Massachusetts. Earlier modes of public transportation in Boston were independently owned and operated; many were first folded into a single agency with the formation of the Metropolitan Transit Authority (MTA) in 1947. The MTA was replaced in 1964 with the present-day MBTA, which was established as an individual department within the Commonwealth of Massachusetts before becoming a division of the Massachusetts Department of Transportation (MassDOT) in 2009.

The MBTA and Philadelphia's Southeastern Pennsylvania Transportation Authority (SEPTA) are the only US transit agencies that operate all five major types of terrestrial mass transit vehicles: light rail vehicles (the Ashmont–Mattapan High-Speed and Green Lines); rapid transit trains (the Blue, Orange, and Red Lines); regional rail trains (the Commuter Rail); electric trolleybuses (the Silver Line and several routes in the northern suburbs of Boston); and motor buses (MBTA bus). In 2016, the system averaged 1,277,200 passengers per weekday, of which heavy rail averaged 552,500 and the light-rail lines 226,500, making it the fourth-busiest subway system and the busiest light rail system in the United States. As of late 2019, average weekday ridership of the commuter rail system was 119,800, making it the sixth-busiest commuter rail system in the U.S.

The MBTA is the largest consumer of electricity in Massachusetts, and the second-largest land owner (after the Department of Conservation and Recreation).In 2007, its CNG bus fleet was the largest consumer of alternative fuels in the state. The MBTA operates an independent law enforcement agency, the Massachusetts Bay Transportation Authority Police.

reference

Full Form	Category
Micro Btx	Computing
Massachusetts Bay Transportation Authority	Regional