Congestion
Study: Ride-Sharing Increases Urban Congestion
New research shows that ride sharing contributes to increased congestion and decreased transit ridership.
Watch: How Induced Demand Explains the Vicious Cycle of Congestion
A new Vox video tackles the controversial and counterintuitive concept of induced demand.
Report: Ride-Hailing Drastically Increases Vehicle Miles Traveled
New research published in Transport Policy finds that ride-hailing companies increase vehicle miles traveled of users by 97 percent in Chicago, 114 percent in New York City, and 118 percent in San Francisco.
Ride-Hailing Industry Induces Car Ownership, Research Says
New research from researchers at Carnegie Mellon University finds that instead of setting people free from cars, more people are buying and using cars than ever before.
What Will California's Commutes Look Like After COVID-19?
As the pandemic begins to wind down, Santa Clara Valley Transportation Authority's Deborah Dagang speculates on the future of commuting, traffic, and public transit as Californians slowly return to their travel routines.
Traffic Reductions in Outer London's 'Mini-Hollands' Curtail Vehicle Ownership
An analysis of areas designated as "low traffic neighborhoods" shows a decrease in vehicle ownership rates, a promising sign for the traffic-choked metropolis.
Highway Boondoggles Continue as the Pandemic Stresses Budgets at Every Level of Government
U.S. PIRG has released the latest edition of the Highway Boondoggles report, the sixth edition of the report published since 2014.
High-Speed Delivery Linked to Increased Congestion and Pollution
It's not only mom and pop shops that suffer from over-reliance on online shopping: streets and the environment also suffer the consequences.
Congestion Pricing Scheme Up for Discussion in San Francisco
The public is providing feedback for the idea of a congestion pricing scheme that could charge as much as $12 to drive into Downtown San Francisco.
Virginia DOT Bound by New Law to Study Transportation Demand Management
A new requirement for the Virginia Department of Transportation took effect on July 1. The state's transportation planners and engineers now must study Transportation Demand Management as an approach to congestion management.
The Outdated Models That Continue to Guide Transportation Planning
Transportation demand models offer predictions that are used to make important decisions, but their accuracy is questionable. The real issue, however, might be about the goals of planning and how urban life and livability are quantified.
Failing to Account for Induced Traffic, Even When the Public Demands It
Induced traffic occurs when new highway capacity speeds up traffic, allowing travelers to drive further, increasing sprawl. A review of major highway project plans finds that most fail to accurately account for induced travel effects.
How Cities Are Responding to Automobile Congestion
As economies begin to reopen around the world, some cities are taking action to prevent widespread gridlock.
First New Bridge to Manhattan in Decades Proposed Just for Pedestrians and People on Bikes
Introducing the proposed Queens Ribbon Bridge, a $100 million idea to connect Manhattan to Long Island City in Queens, by way of Roosevelt Island.
Overcoming the Obstacles to Congestion Pricing
The technology for congestion pricing already exists. The leadership and vision required to implement congestion pricing is still a work in progress, according to a report.
The Commute of the Future: Congested Mess, or Massive Mode Shift?
Researchers around the world are trying to get an idea about how increased automobile trips, fewer shared modes, and high unemployment will alter long-term trends in transportation.
Congestion Pricing in Manhattan Likely Stuck in COVID-19 Limbo
The federal government was already slow to cooperate with a plan to charge automobile drivers for entering certain parts of Manhattan, but with coronavirus commanding so much attention, the project isn't likely to move forward any time soon.
Speed Measures the Change on New York City Streets
With so few cars on the road, cars and buses are moving faster in New York City. Some drivers are going too fast, though.
Traffic Congestion Disappears from Atlanta
A region once brought to a standstill by two inches of snow is now almost completely free of traffic congestion.
Car-Free Market Street Benefits Micromobility, Transit Without Ruining Car Commutes, Studies Say
Multiple studies have quantified the early results from a project in San Francisco that blocked most private automobile traffic from Market Street in the city's downtown.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
City of Albany
UCLA Lewis Center for Regional Policy Studies
Mpact (formerly Rail~Volution)
Chaddick Institute at DePaul University
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research
