MARTA (Metropolitan Atlanta Rapid Transit Authority) is a transportation authority located in Atlanta, Georgia, United States. It was established in 1972 and serves as the primary public transportation provider for the Atlanta metropolitan area. MARTA's headquarters is located in Atlanta, Georgia.

The authority operates a network of buses, trains, and mobility vans to provide reliable and efficient transportation services to residents and visitors. It is responsible for managing and maintaining the transit infrastructure, including rail lines, stations, and bus routes. The main products and services offered by MARTA include fixed-route bus services, rail transportation, paratransit services for individuals with disabilities, and rideshare options.

The rail system consists of both heavy rail and light rail lines, covering major areas of Atlanta and its surrounding suburbs. MARTA also offers various fare options, such as unlimited ride passes and discounted fares for seniors and students. MARTA primarily operates in the Atlanta metropolitan area and does not have any noteworthy subsidiaries, joint ventures, or partnerships on a global scale.

In terms of market position, MARTA is the largest transit agency in the state of Georgia and is one of the largest in the southeastern United States. It plays a critical role in providing a transportation alternative to Atlanta's congested roadways. MARTA faces competition from other transportation providers in the region, including private ride-hailing companies like Uber and Lyft.

In recent years, MARTA has implemented several significant changes to its operations and infrastructure to improve its services. These include the expansion of its rail network, the introduction of new bus routes, and the implementation of advanced technologies to enhance the customer experience. Additionally, MARTA has made efforts to improve sustainability by incorporating environmentally friendly practices into its operations.

As of the latest available information, MARTA continues to operate and serve the Atlanta metropolitan area. However, any recent updates or key information beyond the aforementioned details are not provided