Highway Expansions

Close-up of rear car bumper in traffic on freeway.

Research Shows More Roads = More Driving

A national study shows, once again, that increasing road supply induces additional vehicle travel, particularly over the long run.

March 23, 2025 - Road Capacity as a Fundamental Determinant of Vehicle Travel

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

Missouri to Spend $2.8 Billion Widening I-70

Missouri Gov. Mike Parson had a $859 million vision to expand I-70 in key parts of the state. State legislators had an even more ambitious vision.

May 9, 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

A map of the planned West I-526 Lowcountry Corridor project in North Charleston, South Carolina.

Planned Highway Expansion Would Cut Into Black Community in Charleston

The Biden administration's efforts to curb the tendency of highway expansions to cut into Black communities will be tested by the West I-526 Lowcountry Corridor plan in North Charleston, South Carolina.

September 9, 2021 - The Washington Post

Highway Construction

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.

December 10, 2020 - U.S. Pirg

Highway Widening

A Texas Freeway Revolt

The thirst for urban expansion and new highway capacity hit a roadblock on the fringe of the Dallas-Fort Worth metropolis.

November 19, 2020 - D Magazine

Governor Larry Hogan

Highway Expansion Plans Benefitted Governor's Real Estate Business, According to Report

Governor Larry Hogan is accused of personally benefiting from the state of Maryland's ongoing highway expansion program.

January 7, 2020 - Washington Monthly

Marquam Bridge

The Biggest Highway Boondoggles in the United States

Frontier Group and U.S. PIRG have released the fifth edition of its Highway Boondoggles report.

June 18, 2019 - U.S. PIRG Education Fund

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.

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.