CORRIDOR
GA-400 · The North Corridor
The limited-access route from Buckhead north through Sandy Springs, Roswell, and Alpharetta — the spine of Atlanta's northern job corridor.
Atlanta, Georgia · routes: SR 400 · length 52 mi · view on map ↗
≈185,000
veh/day · 2024
0
archive records
0
crashes
0
roadwork
0
closures & events
0
active now
0
severity-3
—
first record
—
latest record
sourced Traffic volume: ≈185,000 vehicles/day — Sandy Springs. GDOT traffic counts, 2024. source ↗
Archive counts computed from the real 511 archive as of 2026-07-18. Aggregate conditions only — no individual vehicle or driver appears anywhere in this reference.
Real DOT data. These records are archived directly from the state's official
DOT feed — real incidents. Status shows the archived snapshot, not live conditions. Aggregate and
exterior only; no person or vehicle is identified.
Incident ledger
No 511 archive records on this corridor yet — the archive deepens weekly.
Road Cards citing this corridor
- 2026-07-17 · Quiet Perimeter, working GA-400 seed
- 2026-07-03 · Northridge crash opens the holiday weekend seed
Cite this page. This URL is permanent — it will not die or change.
https://tm-czar.com/corridor/ga/atlanta/ga-400/
GA-400 (The North Corridor) — corridor page · TM CZAR — Traffic's First Wiki · retrieved 2026-07-18.
https://tm-czar.com/corridor/ga/atlanta/ga-400/
GA-400 (The North Corridor) — corridor page · TM CZAR — Traffic's First Wiki · retrieved 2026-07-18.