The Shoup Doctrine: Essays Celebrating Donald Shoup and Parking Reforms

Why It Matters

Shoup’s pricing doctrine unlocks affordable housing and sustainable mobility, fundamentally reshaping how cities allocate public land and curb car‑centric sprawl.

Key Takeaways

• Shoup reframed parking as a scarce, priced resource.
• Minimum parking requirements cause oversupply and hinder affordability.
• Cities repealing minimums unlock housing and vibrant development.
• Parking cash‑out and AB2097 laws stem from Shoup’s research.
• Shoupistas globally advocate equity‑focused parking reforms in urban policy.

Summary

The MIT Mobility Forum convened to commemorate the legacy of Donald Shoup, whose seminal book The High Cost of Free Parking reshaped urban planning. Professor Dan Hess presented his newly published tribute, The Shoup Doctrine, outlining Shoup’s career, his paradigm‑shifting research, and the growing global community of “Shoupistas” who champion his ideas. Hess emphasized three core insights: parking should be treated as a scarce, market‑priced good; minimum parking requirements create an oversupply of underpriced spaces that inflate housing costs and degrade urban vibrancy; and revenue from market‑based pricing can be reinvested in community amenities. The discussion highlighted concrete outcomes—cities such as Buffalo, Birmingham, and San Jose have eliminated minimums, unlocking affordable housing and walkable neighborhoods. Notable quotes underscored Shoup’s influence: “Parking is one of the most active, dynamic, and pervasive landmarks on Earth,” and his research directly inspired policies like the parking cash‑out law and California’s AB2097, which preempts local parking minima near transit. Hess illustrated Buffalo’s “Green Code” transformation, where the removal of mandatory parking spurred redevelopment of former surface lots into mixed‑use districts. The implications are clear: adopting Shoup’s pricing framework can reduce congestion, lower emissions, and promote equitable development. Planners and policymakers are urged to replace minimum parking mandates with maximums and market‑based pricing, leveraging the momentum of the Shoupista network to drive sustainable, people‑first urban design.

Original Description

This month marks the anniversary of Prof. Don Shoup's passing. His seminal work, the High Cost of Free Parking, transformed urban planning, revealing how underpriced parking distorts cities; as NYTimes noted, "He took a dry topic and made it entertaining, capturing the attention of policymakers and influencing the way cities are built."

To honor his legacy, Prof. Daniel Hess of SUNY Buffalo, a formal student of Shoup, spent two years writing the book "The Shoup Doctrine" to explore Shoup's ideas and his extraordinary influence on land use and transportation practice. Prof. Hess will discuss the book at this Friday's MIT Mobility Forum, followed by commentary from Professor Brian Taylor.

Speaker: Prof. Daniel Hess, SUNY Buffalo

Commentator: Prof. Brian Taylor, UCLA