Lines： Nine Trips, One Day in Atlanta | MUSA 30 Day Map Challenge

Created by Zhanchao Yang Source ↗

Day 2 (Lines): Continuing with my TripLibre travel diary, I mapped one full day of my Atlanta trip on Friday, Oct. 2, 2026. The map shows the nine trips I recorded, colored by mode: taxi, MARTA and on foot. Together they cover 44 miles from Emory to downtown to Cobb County, with two returns to the hotel in Buckhead. A timeline below the map lays out the same day hour by hour. Gray is time spent at a stop and color is time on the move.

Technical Implementation:

R with sf, dplyr, lubridate and ggplot2 for processing trips and drawing the map and timeline
patchwork and ggtext for the map + timeline layout and rich-text annotations
showtext with Libre Franklin and Source Serif 4 for typography
Data: personal TripLibre travel diary export (trips & visits). Routes are pinned to each stop and smoothed. GPS jumps that double back were removed, and legs with no signal (the MARTA tunnel) are drawn straight. I corrected the travel modes by hand. The raw data stays private, and the hotel is labeled by neighborhood only.
Basemap: roads and water from OpenStreetMap contributors via the Overpass API (osmdata)

Nine trips, one day in Atlanta: GPS routes colored by taxi, MARTA and walking between Buckhead, Emory, downtown and The Battery, with an hour-by-hour timeline of the day