Atlanta First/Last-Mile Hub Plan

Proposed e-scooter and bike-share hub sites that connect residents to MARTA within a 10-minute walk (400 m radius at 2 km/h). Each hub is sized for at least 3 shared devices.

Reading the map

• Blue bike icons — proposed hub locations (click for details)
• Light blue circles — 10-min walk service area per hub
• Solid blue lines — existing bike lanes and trails
• Train icons — MARTA rail stations
• Use the layer control (top-right) to toggle bus stops and bike layers

How hubs were selected

1. Build candidates — Start from all 3,763 MARTA bus and rail stops. Add offset points on nearby bike lanes (within 100 m of a stop) so hubs can sit on safe cycling infrastructure, not only at the curb.
2. Model demand — Lay a 200 m population grid across Atlanta census tracts. Residents in lowest-income (Q1) tracts count double so underserved areas are prioritised.
3. Greedy max-coverage — One hub at a time, pick the candidate that serves the most people not yet within 400 m of any chosen hub or stop. Stop at 95% population coverage or 400 hubs, whichever comes first.
4. Tie-breakers — When two sites cover similar population, prefer rail stations, then stops closest to bike lanes.
5. Annotate — Each hub records nearest MARTA stop, distance to bike infrastructure, and estimated residents within the walkshed.

This run

• 400 hubs (5 at rail, 395 at bus stops , 32 on bike-lane offsets)
• 3,763 MARTA stops in the network

Data: MARTA GTFS, U.S. Census ACS tracts, ARC Active Transportation Inventory (2025). See maps 01 and 03 for before/after walk-time coverage.

Map Legend

• 🚲 Blue bike icons = Proposed hubs
• Existing bike lanes
• Proposed bike lanes
• 400 m walkshed (~10 min walk)