GA 400 North - Downtown Atlanta to Alpharetta - Georgia - 4K Highway Drive

GA 400 northbound through the Atlanta Metro Area. Video begins on the Downtown Connector (I-75/I85) and follows I-85 to the interchange with GA400 which then heads through the suburbs of Sandy Springs, Roswell, and Alpharetta.
Filmed: October 2021

Cities Explored: https://www.google.com/maps/d/edit?mi...

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From Wikipedia:
Georgia State Route 400 (SR 400; commonly known as Georgia 400) is a freeway and state highway in the U.S. state of Georgia serving parts of Metro Atlanta. It is concurrent with U.S. Route 19 (US 19) from exit 4 (Interstate 285) until its northern terminus south-southeast of Dahlonega, linking the city of Atlanta to its north-central suburbs and exurbs. SR 400 travels from the Lindbergh neighborhood in the Buckhead district of Atlanta, at Interstate 85 (I-85), to just south-southeast of Dahlonega. Like the Interstate highways, it is a limited-access road (with interchanges instead of intersections), but unlike the interstates (which were renumbered by GDOT in 2000), the exit numbers are not mileage-based, they are sequential. Once SR 400 passes exit 17 (SR 306), it changes from a limited-access freeway into an at-grade divided highway with traffic lights, but still with a high speed limit of 65 miles per hour (105 km/h), and ends at the J.B. Jones Intersection at SR 60/SR 115 in Lumpkin County.

Between I-85 and I-285, SR 400 is designated "T. Harvey Mathis Parkway", after a local land developer and road proponent who died the day after being appointed as head of the Atlanta Committee for the Olympic Games in June 1991, when the tollway was under construction. Upon reaching the Perimeter (I-285) and beyond, the highway is designated "Turner McDonald Parkway". SR 400 is nicknamed locally as the "Alpharetta Autobahn" due to the prevalence of speeding.

Time Stamps:
Atlanta: 0:00-8:12
Sandy Springs: 8:13-16:04
Roswell: 16:05-17:44
Alpharetta: 17:45