Induced Demand

Rendering of freeway deck over Interstate 10 in El Paso

El Paso Freeway Cap Linked to Road Expansion

A deck reconnecting neighborhoods divided by the interstate is part of a controversial freeway expansion proposal.

January 27, 2023 - Smart Cities Dive

An image taken from the point of view of a driver on a mostly empty freeway, with large overpasses overhead.

Induced Demand Be Damned: Missouri Governor Proposes I-70 Expansion

Highway widenings still attract support from both sides of the political aisle, despite the inadequacies of the approach in solving the problems it intends to solve.

January 23, 2023 - The Kansas City Star

Aerial view of Houston freeway interchanges with downtown skyline in background

Halted Interstate Expansion Could Proceed in Houston

Local and state officials have come to an ‘historic’ agreement that could move the stalled project forward.

December 28, 2022 - Houston Chronicle

Aerial photo of the US 131/M-6/68th St. interchange in Wyoming, MIchigan

Op-Ed: Michigan Needs a New Transportation Strategy

One writer calls on the state to stop expanding roads and channel funding to projects that support Michigan’s sustainability goals.

October 17, 2022 - Bridge Michigan

A crowd of people cross the street with a sign for the entrance of Disneyland in the background

Disneyland Is Too Crowded. Is More Capacity Needed?

Disneyland has a plan to create more supply to meet contemporary demand, a strategy reminiscent of contemporary debates surrounding housing and transportation.

September 29, 2022 - James Brasuell

San Fernando Valley

What Is Induced Demand?

“If you build it, they will come.”

June 6, 2022 - Diana Ionescu

Chicago Commute

Planning for Congestion Relief

The third and final installment of Planetizen's examination of the role of the planning profession in both perpetuating and solving traffic congestion.

May 12, 2022 - James Brasuell

Congestion versus mobility

How Planning Fails to Solve Congestion

Solutions for congestion are never as simple and easy as armchair planners and engineers would like you to believe—especially those who suggest that congestion can be solved by forever building more roadway capacity.

April 20, 2022 - James Brasuell

Herndon, USA - October 7, 2020: Sully road 28 multiple lane highway in Northern Virginia with traffic cars and exit sign for Washington Dulles airport, Sterling and Leesburg

Report: Northern Virginia Transportation Plans Will Induce More Driving

The Northern Virginia Transportation Authority’s plans to widen and expand the region’s highways will lead to a sharp increase in vehicle miles driven, a new study shows.

April 15, 2022 - Greater Greater Washington

Congestion

Planning and the Complicated Causes and Effects of Congestion

What do planners know about congestion, and what can they do about it? Explanations and solutions are less obvious than they seem (part one of a three-part series).

April 13, 2022 - James Brasuell

Miami Traffic Jam

When Will We Believe in Induced Demand?

The well-documented concept has yet to catch on in state departments of transportation, but acknowledging it could dramatically transform U.S. transportation policy.

March 3, 2022 - Governing

El Paso

Report Criticizes El Paso Interstate Expansion Plan

An independent review of TxDOT's proposed expansion of I-10 through downtown El Paso highlights several flaws and a price tag close to $800 million.

February 18, 2022 - CBS 4 El Paso

Freeway Interchange Construction

Infrastructure Funding Could Lead to Higher Carbon Emissions

Billions in federal infrastructure funding slated to go to states with few strings attached could fund roadway construction and widening projects that will raise greenhouse gas emissions and worsen climate change.

February 13, 2022 - The New York Times

Interstate 65 Louisville

Evidence for Tolls as a 'Surefire' Traffic Congestion Fix

Traffic on a Louisville freeway fell by half after a toll was implemented. Could this be the best way to reduce traffic congestion?

November 19, 2021 - City Observatory

Interstate 35 in Austin, Texas

Austin Leaders Denounce 20-Lane Freeway Project

TxDOT is pushing ahead with plans for a massive freeway expansion project through downtown Austin despite opposition from virtually all local leaders.

October 27, 2021 - Slate

Highway 520

New Tool Calculates Induced Demand Caused by Road Widening Projects

The calculator can help transportation advocates and agencies project how many additional miles and emissions a highway widening project would create.

October 22, 2021 - Streetsblog USA

Racing Cars

Partisan Splits for Transportation Politics

Researchers found that while left-leaning respondents were more likely to favor transportation reform and sustainable modes, conservatives are not as far behind as we think.

October 11, 2021 - Streetsblog USA

Atlanta Traffic

Why Don't State DOTs Believe in Induced Demand?

Despite evidence that widening roadways is only a temporary solution to congestion, a decades-long inertia leads states to continue pushing expansion projects against local opposition.

October 6, 2021 - Bloomberg CityLab

Aerial Texas Hill Country at sunset, with an aerial view of a highway interchange and Interstate 35 in Austin, Texas.

Austin Interstate Expansion Plan Draws Opposition

A proposal to widen I-35 has drawn criticism from community members who want to see the city shift away from car-centric development.

September 15, 2021 - Texas Signal

Road Construction

Proposed Colorado Rule Calls for Mitigating Climate Effects of Road Projects

State and local agencies would be tasked with evaluating and offsetting the carbon emissions caused by new transportation projects.

August 20, 2021 - Colorado Public Radio

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