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.
CityLab University: Induced Demand
Congress for New Urbanism – Highways to Boulevards
“From elevated freeways to surface boulevards: neighborhood and housing price impacts in San Francisco” by Robert Cervero , et al.
FHWA – Interstate History