Mode Share

People boarding a train on a crowded Paris subway platform.

Study: Metro Systems Cut Driving Significantly More Than Other Forms of Transit

European cities with subway systems have a much lower share of car trips than cities with tram- or bus-based transit systems.

November 12, 2025 - Complexity Science Hub

Great Rivers Greenway bike trail bridge over highway in St. Louis, Missouri.

Moving Beyond Crash Statistics to Understand Road Safety

Why measuring traffic deaths alone doesn’t paint a full picture.

August 8, 2024 - nextSTL

View of cars stuck in gridlocked traffic with traffic lights in background

US Cities Ranked by Vehicle Miles Traveled

Density, weather, and access to public transportation systems play a key role in how many miles are driven in the country’s 50 largest metro areas.

June 20, 2024 - Replica

Miami Traffic Jam

The Cost of Driving Increasingly Out of Reach in the U.S.

New research stresses the importance of socioeconomic differences in U.S. transportation trends.

March 27, 2023 - Salon

Bike Light

People on Bikes Outnumber Drivers in the City of London

The City of London’s efforts to increase biking and reduce driving has finally achieved a long-term goal: a preference for biking over driving.

March 24, 2023 - Forbes

Biking in Denver

Study: More Bike Infrastructure Could Prevent 15,000 Deaths Annually

In addition to reducing air pollution and congestion, improving bike infrastructure could save thousands of lives each year, according to new research.

December 8, 2021 - Streetsblog USA

Chicago Bikeshare

Study: When Women Ride Bikes, Everyone Rides More

New research indicates a positive association between overall cycling levels and ridership rates for women-identified riders.

May 19, 2021 - Streetsblog USA

D.C. Metro

Report: D.C. Area Commuters Driving Alone Less

With all the bad news about plummeting ridership as the D.C. Metro transit system has struggled to deal with maintenance issues, a new report indicates that regional commuters are still driving alone less.

October 10, 2019 - Greater Greater Washington

Bike The Drive

Car-Free Cities, Measured

The CityLab team has created a new metric to measure the U.S. cities where people are most likely to be car free.

September 25, 2019 - CityLab

Protected bike lane New York

Fewer New Yorkers Riding Bikes

A recent report presents evidence that fewer New Yorkers are choosing bikes as an alternative form of transportation.

September 23, 2019 - New York Post

Copenhagen Bikes

Copenhagen Update: On-Street Auto Parking Replaced by Bike Parking

Copenhagen may have already met its bicycling goal of 50 percent of modal share for commuting, but it needs to improve the share for all trips. With less funding available, the city is pursuing low cost strategies, such as auto parking removal.

June 3, 2019 - Forbes

Colorado Bike

The Best Places for Bikes in the United States

PeopleforBike has released its most comprehensive analysis yet of how well cities and towns provide bike infrastructure and succeed in attracting people to active transportation.

May 8, 2019 - PeopleforBikes

Broadway Bike Lane

If You Build It, They Will Ride (400% More)

A more than 400 percent increase in bike ridership following the opening of a protected bike lane on Second Avenue proves that Seattleites are more inclined to ride with safe facilities.

May 1, 2019 - Streetsblog USA

Bike Commute

Congressional Bill Would Offer a Bigger Tax Break for People Who Bike to Work

A bi-partisan bill till early in the federal legislative process would expand a very small tax incentive for people who ride a bike to work.

April 8, 2019 - Fast Company

Biking

Bike Commuting Down: American Community Survey Data

Bike commuters are increasing in some cities, but overall, fewer Americans are biking to work.

January 11, 2019 - USA Today

Broadway Bike Lane

Bike Commutes at a Ten-Year Low in Seattle

Commute trips by bike are flat in Seattle, despite investments in high quality infrastructure. The city will have to do more for bikes to cut into the overall share of commute trips in the city of Seattle.

October 2, 2018 - The Seattle Times

Empty Subway

Census: Working From Home More Common Than Taking Transit to Work

A more sedentary approach to commuting is now more common than taking the bus or train to work, trailing only driving to work as the most common commute mode.

September 24, 2018 - Governing

Free Floating Bikeshare

Dockless Bikeshare Has More Bikes Than Riders

Private bikeshare companies have rolled out large fleets of bikes in cities around the world and United States, but despite their ubiquity, dockless bikeshare is actually much less popular than traditional bikeshare.

May 9, 2018 - Governing

Car-Free Street

Replica, a New Tool from Sidewalk Labs, Takes Trip Data to the Next Level

Detailed reports on mode share, in real time and over time, are available with Replica.

April 18, 2018 - Sidewalk Labs

D.C. Metro Bus

How Bikes Exploded onto the D.C. Scene

A trio of local experts offers insight into how Washington, D.C. tripled bike mode share in a decade.

December 28, 2017 - CityLab

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Community Development Director

City of Wisconsin Rapids

Professor of Urban Planning

Harvard University Graduate School of Design

Transportation Planner I

KFH Group Inc.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.