Duluth holds the title of being a railroad city. Trains carrying both passengers and cargo can be seen at all times of the day. In addition, Duluth is a heavily car-dependent suburb. A number of collector roads distribute traffic around both incorporated and unincorporated areas of the city, some of the most important being Buford Highway (), Duluth Highway (), Sugarloaf Parkway, and Pleasant Hill Road. Apart from Buford Highway, these roads bring traffic to Interstate 85, connecting the Duluth area to central Atlanta about away.