The Transportation Committee recommends on matters pertaining to transportation, generally, including the Metropolitan Atlanta Rapid Transit Authority (MARTA). One of its main functions is overseeing the Department of Aviation which operates Hartsfield -Jackson Atlanta International Airport, the world’s busiest airport.  The Transportation Committee also has purview over the Department of Public Works’ Bureau of Traffic and Transportation, whose task it is to perform traffic studies, install traffic signage and traffic calming devices throughout the city, etc.