Transport and commuting · GA-400
Getting around Alpharetta
Alpharetta's road story is one highway: GA-400 runs the length of the city and carries the commute south to Atlanta, with express lanes and their tolls setting the travel math. SR 9, Old Milton Parkway, and the Ring greenway network handle the local moves.
Transit is the commuter story: express coaches run from the North Fulton park-and-ride lots, and the MARTA rail line starts at North Springs, a drive south. Every route below is verified; where something does not exist, this page says so.
The roads
GA-400 is the spine
GA-400
The freeway runs north and south through the city with several interchanges. Southbound to Buckhead and midtown in the morning is the classic backup, and the return north in the afternoon matches; the express lanes buy time when the toll is worth it.
SR 9 and the local grid
SR 9 (Main Street), Old Milton Parkway, and the ring road network handle the local moves; the core streets around downtown and Avalon are walkable and bike-able in season.
Transit
Coaches to the city, rail a drive away
The express commuter coaches run from the North Fulton park-and-ride lots into the city, and MARTA rail picks up at North Springs, a drive south on GA-400. The honest note: most Alpharetta trips are driving trips, and most of them never leave the city.
Honest times
The toll decision is the commute decision
The GA-400 express lanes make Alpharetta's commute a daily pricing decision more than a distance decision. Test the free lanes and the express lanes at your actual hours, both directions, before you set a routine or a budget.
An editorial guide, not a listings site. Updated September 13, 2026. Real-estate guidance on this page is provided by Rob Dietrich, REALTOR® with eXp Realty, LLC.