BART map is a map system, stands for Bay Area Rapid Transit that have a quick transit mechanism in San Francisco. This system links the city with others in the east bay and suburbs in north San Mateo County. This map system is in operation with fives lines whose track length for 104 miles having 43 stations four different countries. In United States this map system is the fifth busiest intense rail swift transit system giving ride to average 327,629 passengers every week day. This system was first purported in 1946 and was constructed in 1960s.However it can be said that BART map system is the off spring to the key system that was in operation in street cars crosswise the lower deck of Oakland Bay Bridge till 1958. Key system once served some of current coverage area for this map system. The first passenger rail service was started on September 1972 on few broad tracks. This map system was considered as a major step towards sub way technology. This map is a highly successful commuter rail system and a rapid transit and have served beneficial route towards highway transportation. Because of its triumph and the system on which the number of commuters rely, BART map system  has been going through a enormous modernization to advance the quality and its efficiency to offer needs of public transportation. This advancement includes repairing of the stations, buying new and fixed up rolling stock and increasing the area map lines cover.

BART map system turned out to be first transit system on May 2004 in United States to serve its passengers of all wireless carriers a cellular telephone communication on trains which are underground, unlike other systems which do not offer services to  all the main cell phone carrier passengers. On 20^th February 2007 BART got into the contract to allow a beta check for WIFI internet access for the passengers. There are five lines in a BART system but usually the network has more than one line on the same track. The trains are managed to run consecutively after every fifteen minutes but in evenings, weekends and holidays, it runs after every 20 minutes. Moreover, the station could have service every three to four minutes by having only four lines. The system shuts down every 4 hours at night for maintenance and reopens at 4:00am in the morning except for Sundays. Commuter rail systems are quite similar to the fares on BART, moreover, they are higher than most of the metros, particularly for long trips. The fare is normally based on how much the length and speed of the trip has been accounted.

In contrast to other rapid transit rail systems BART lines are usually not known by shorthand routes or titles. However the lines have been colored constantly on system maps, they are only seldom known officially by color names, and only occasionally referred to in this manner to public members.