Comparing Transit Ridership

Data journalism site FiveThirtyEight wades into the complex world of transit ridership data, looking for insights into which cities make use of robust transit systems, and which still have work to do.

1 minute read

August 4, 2014, 11:00 AM PDT

By James Brasuell @CasualBrasuell


Reuben Fischer-Baum analyzes monthly ridership data from the National Transit Database and population estimates from the American Community Survey to calculate 'trips per resident" for 290 urbanized areas. The metric allows a comparison of transit trips between cities of varying sizes.

One of the larger questions examined by the article in reaction to the data follows: "Do certain regions tend to support better public transit, or is this just a product of city size and density?" Here's how Fischer-Baum responds:

"Among all 290 cities, there’s a clear relationship between trips per resident and both total population (the r-squared is 0.41) and population density (r-squared = 0.21). This means that it’s not particularly revealing to map all the cities together, because larger, denser cities are clustered in the Northeast and on the West Coast. But if we look only at the 248 urban areas with fewer than 1 million residents, the total population relationship (r-squared = 0.0002) and population density relationship (r-squared = 0.07) disappear."

Thursday, July 31, 2014 in Five Thirty Eight

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Aerial view of town of Wailuku in Maui, Hawaii with mountains in background against cloudy sunset sky.

Maui's Vacation Rental Debate Turns Ugly

Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.

July 1, 2025 - Honolulu Civil Beat

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

July 9, 2025 - Diana Ionescu

Green vintage Chicago streetcar from the 1940s parked at the Illinois Railroad Museum in 1988.

Chicago’s Ghost Rails

Just beneath the surface of the modern city lie the remnants of its expansive early 20th-century streetcar system.

July 13, 2025 - WTTV

Bend, Oregon

Bend, Oregon Zoning Reforms Prioritize Small-Scale Housing

The city altered its zoning code to allow multi-family housing and eliminated parking mandates citywide.

3 hours ago - Strong Towns

Blue and silver Amtrak train with vibrant green and yellow foliage in background.

Amtrak Cutting Jobs, Funding to High-Speed Rail

The agency plans to cut 10 percent of its workforce and has confirmed it will not fund new high-speed rail projects.

4 hours ago - Smart Cities Dive

Green Skid Row mural satirizing city limit sign in downtown Los Angeles, California.

LA Denies Basic Services to Unhoused Residents

The city has repeatedly failed to respond to requests for trash pickup at encampment sites, and eliminated a program that provided mobile showers and toilets.

5 hours ago - Los Angeles Public Press