There’s a law of economics that says more urban highways mean more traffic. We looked at a real-world examples in Portland, San Francisco, and Seattle to see if that’s the case.

Further Reading:
CityLab University: Induced Demand

Norman Garrick in Citylab

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Vox: How Highways Wrecked Urban American Cities

Congress for New Urbanism – Highways to Boulevards[182]=182Harbor Drive Freeway

Governor Tom McCall – Oregon Historical Society

Law of Peak Hour Expressway Congestion

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“From elevated freeways to surface boulevards: neighborhood and housing price impacts in San Francisco” by Robert Cervero , et al.

Portland State University

Impacts of Road Capacity Removal

FHWA – Interstate History

Case studies in Urban Freeway Removal

Seattle DataSDOT

King County Metro

Office of the Mayor

Bike counters