Smart growth Study Guide

📖 Core Concepts Smart Growth – Planned, compact, walkable urban development that concentrates housing, jobs, and services to curb sprawl. Mixed‑Use Development – Combines residential, commercial, and civic uses in the same area, enabling daily needs within walking distance. Transit‑Oriented Development (TOD) – Design that places homes and jobs near high‑frequency public‑transport nodes to maximize ridership. Urban Growth Boundary – A regulatory line that limits outward expansion, preserving open space and farmland. Density – Number of housing units or people per land area; higher density generally supports walking, transit, and lower per‑capita energy use. Paradox of Intensification – While density cuts overall car miles, it can create local traffic congestion because more trips are generated in a smaller area. --- 📌 Must Remember 10 Smart‑Growth Principles (mix land uses, compact design, diverse housing, walkable streets, sense of place, preserve open space, focus growth in existing areas, transportation choices, predictable decisions, stakeholder collaboration). Key Benefits – Reduced greenhouse‑gas emissions, improved air‑ and water‑quality, better public health via walking, preservation of natural/cultural resources. Empirical Findings Higher urban density → lower per‑capita energy consumption (Mindali et al., 2004). Mixed‑use & density increase walking/transit, cut auto trips (Frank & Pivot, 1994). Built environment causally shapes travel behavior (Handy et al., 2005). Common Critiques – Potential rise in housing prices, reduced single‑family home stock, risk of socioeconomic segregation (Cox 2002; Pozdena 2002). --- 🔄 Key Processes Assess Existing Land‑Use & Transportation – Map densities, transit stations, open‑space assets. Revise Zoning Ordinances – Allow higher FAR (Floor‑Area Ratio), eliminate parking minimums, permit mixed‑use. Implement TOD Identify transit hubs → zone for higher‑density residential/commercial. Secure funding for infrastructure upgrades. Create Transfer of Development Rights (TDR) Designate “sending areas” (e.g., farms, wetlands). Sell density credits to developers in “receiving areas” (urban infill). Engage Stakeholders – Conduct workshops, gather community input, iterate plans. Monitor Outcomes – Track vehicle‑miles traveled (VMT), housing affordability, air‑quality metrics. --- 🔍 Key Comparisons Smart Growth vs. Urban Sprawl Smart Growth: Compact, mixed‑use, transit‑friendly, preserves open space. Sprawl: Low‑density, single‑use, car‑dependent, consumes greenfield land. Parking Minimums vs. Parking Elimination Minimums: Require a set number of spaces → increase land use, discourage walking. Elimination: Frees land for housing/amenities, reduces construction costs. Density Effect on Travel Higher Density: Generally ↓ per‑capita VMT, ↑ walking/transit. Paradox: May ↑ local congestion if road capacity unchanged. TDR vs. Direct Zoning Restrictions TDR: Market‑based transfer of rights, flexible, can generate revenue. Direct Restriction: Prohibits development outright, less adaptable. --- ⚠️ Common Misunderstandings “More density always means less traffic.” → True for regional VMT, but local congestion can rise (Paradox of Intensification). “Smart growth eliminates all car use.” → It reduces reliance but does not eradicate automobile trips, especially for goods movement. “TDR is a tax on developers.” → It’s a voluntary purchase of development rights, not a levy. “Smart growth only benefits high‑income households.” – While housing cost concerns exist, the goal includes diverse housing options; policies must be designed to protect low‑income groups. --- 🧠 Mental Models / Intuition “Compact ≈ Choices” – Imagine a 5‑minute walk radius: the more functions (store, school, transit) you can pack into that circle, the less you need a car. “Density is a Lever, Not a Switch.” – Raising density lowers overall car miles, but you must also upgrade transit and road capacity to avoid the congestion “lever” getting stuck. “Parking is Land‑Use Tax.” – Every required parking spot is land that could be housing, park, or a shop; removing minimums frees that “taxed” land. --- 🚩 Exceptions & Edge Cases High‑Income, Low‑Density Suburbs – May retain strong car dependence despite proximity to transit. Urban Growth Boundaries in Rural Areas – Can sharply limit single‑family home supply, driving up prices. Socio‑economic Factors – Income and car ownership often outweigh density in determining travel behavior. Transit‑Oriented Development without Reliable Service – TOD fails to shift mode choice if service is infrequent or unaffordable. --- 📍 When to Use Which | Situation | Preferred Tool/Approach | |-----------|--------------------------| | Need to protect farmland or wetlands | TDR (sell density rights) | | Existing high‑frequency rail line | TOD (high‑density mixed‑use near stations) | | City facing severe parking shortages | Eliminate parking minimums; allow shared or on‑street parking | | Community demands affordable housing | Mixed‑use zoning with inclusionary housing mandates | | Goal: curb outward expansion | Urban growth boundary combined with infill incentives | | Want to improve walkability quickly | Sidewalk upgrades & pedestrian‑friendly streetscape (complete‑streets) | | Managing local congestion in dense core | Demand‑management pricing + enhanced transit frequency | --- 👀 Patterns to Recognize “Mixed‑use + Density → ↑ Walking/Transit, ↓ Auto Trips” – Look for study citations (Frank 1994, Handy 2005). “Paradox of Intensification” phrasing – Signals a question about local traffic congestion despite higher density. “Parking minimum” appearing in policy critique – Often a red flag for higher housing costs. References to “green belt” or “urban‑growth boundary” – Indicates a strategy for open‑space preservation and sprawl control. --- 🗂️ Exam Traps Distractor: “Smart growth guarantees lower housing prices.” – Reality: prices can rise without explicit affordability measures. Distractor: “Eliminating parking minimums automatically increases transit ridership.” – Ridership also depends on service quality and cost. Distractor: “All high‑density neighborhoods have lower VMT per capita.” – The paradox shows local congestion may increase. Distractor: “TDR is a land‑use restriction.” – It’s a market mechanism allowing density transfer, not a ban. Distractor: “Smart growth only concerns physical design, not social equity.” – Equity (housing choice, regional justice) is a core goal per the Triple Bottom Line. ---