Study Finds UberPOOL Adds to City Traffic by Competing with the Subway

Past studies have shown how ride hailing services have added to congestion. A new study by Bruce Schaller suggests that even ride shares add to traffic, because they pull riders off of more efficient transit options like public transit.

1 minute read

July 29, 2018, 9:00 AM PDT

By Casey Brazeal @northandclark


Transportation Network Companies

Filip Frącz / Flickr

Studies have shown ride hailing services add to traffic, but a new data from transport consultant Bruce Schaller goes further showing that even shared rides are adding to traffic. "Pooled ride services have lured a different market that directly competes with subway and bus systems, while failing to achieve significantly better efficiency than their solo alternatives. The result: more driving overall," Faiz Siddiqui reports for The Washington Post.

Ride share companies have long argued that they're getting cars off the roads, because their customers forgo their cars and take the occasional Lyft or Uber instead, but research has shown that isn't the case. In fact, Uber drivers end up spending more time on the road than private car owners, because they spend time driving between rides or cruising, waiting for a ride to appear. "Deadheading" between rides accounts for about half of the miles driven in these services.

Analysts believe ride share miles will continue to increase. "Ride sharing has added 5.7 billion vehicle miles to nine major urban areas over six years, the report says, and the trend is “likely to intensify” as the popularity of the services surges," Siddiqui writes.

Wednesday, July 25, 2018 in The Washington Post

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

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.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Street scene in Kathmandu, Nepal with yellow minibuses and other traffic.

The Small South Asian Republic Going all in on EVs

Thanks to one simple policy change less than five years ago, 65% of new cars in this Himalayan country are now electric.

45 minutes ago - Fast Company

Bike lane in Washington D.C. protected by low concrete barriers.

DC Backpedals on Bike Lane Protection, Swaps Barriers for Paint

Citing aesthetic concerns, the city is removing the concrete barriers and flexposts that once separated Arizona Avenue cyclists from motor vehicles.

2 hours ago - The Washington Post

Bird's eye view of studio apartment design.

In These Cities, Most New Housing is Under 441 Square Feet

With loosened restrictions on “micro-housing,” tiny units now make up as much as 66% of newly constructed housing.

4 hours ago - Smart Cities Dive