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Understand urban planning concepts and terms

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Denver Region

Transect

In urbanism and planning, the term transect provides a conceptual framework for understanding how the scale of built environments can vary from place to place.

D.C. Land Use Map

Geographic Information Systems

GIS software, which combines location information with data about a range of other attributes, has become an indispensable tool for mapping and spatial analysis in urban planning and dozens of other fields.

Brooklyn, New York City

Redevelopment

Redevelopment includes all development projects that build new structures and land uses on a previously developed site. Understanding the nuances of redevelopment is critical for understanding the ways cities and communities change.

Side-by-side brick duplexes pictured on a sunny day.

Non-Conforming Uses

A non-conforming use is an existing building that would not be built under current land use regulations. While esoteric, the term is nonetheless critical to understanding the changes in development regulations over time.

Vacant home with foreclosure sign.

Land Bank

Land banks are public or private organizations that purchase, hold, redevelop, or otherwise manage foreclosed or abandoned properties with the goal of achieving community objectives such as affordable housing construction or public park space.

YIMBY

YIMBYs

YIMBY, an acronym standing for "Yes In My Backyard," describes advocates who support housing development as a response to the outcomes of restrictive zoning and planning policies.

Pop-Up Park

Tactical Urbanism

Tactical urbanism, one of the most common buzzwords in planning over the past decade, describes a variety of low-cost, incremental public realm design interventions.

"You are entering Jackson's downtown historic district" brown sign

Overlay Districts

A zoning overlay district superimposes an additional set of regulations over an existing zoning district, or multiple zoning districts.

San Fernando Valley

Induced Demand

“If you build it, they will come.”

A row of multistory, brick buildings in a small U.S. city, with retail uses on the ground floor and apartments above.

Incremental Planning

The concept of incrementalism can be applied to numerous fields and disciplines—one of which is planning. In the field of planning, the word incremental is usually used as an adjective to describe other planning words, such as code reform and development.

Public Comment

Planning Commissions

Planning commissions fill an influential advisory role in planning processes, maintaining citizen oversight of government planning powers and also providing a public forum for debate about the future of communities.

hand holding house key with house-shaped keychain and house in background

Supportive Housing

Supportive housing combines affordable housing with social services providers to help people experiencing homelessness, disability, or other hardships transition to permanent housing.

Portland Street

Automobile Dependency

Automobile dependency is a term used to describe households who must rely on private vehicles for everyday transportation, often due to a lack of safe pedestrian infrastructure, ineffective or absent public transit options, and sprawl.

Master-Planned Community

Planned Unit Development

A Planned Unit Development (PUD) is a specific type of plan or development commonly associated with master planned communities and sprawl. The specific definitions of a PUD vary by jurisdiction, but the term generally refers to a flexible approach to the planning of a variety of housing types and land uses on a relatively large portion of land.

Congestion

Level of Service

Level of Service (LOS) defines how well vehicle traffic flows along a street or road. LOS is one of the most influential metrics in planning, with critical relevance for both land use and transportation planning.

Hand holding house keys on house-shaped keychain

Area Median Income (AMI)

Frequently used to determine eligibility for housing assistance programs, Area Median Income measures the midpoint of an area’s income distribution.

Pedestrian Crosswalk

Vision Zero

First adopted by the Swedish parliament in 1997, Vision Zero is a strategy aimed at eliminating pedestrian deaths by improving road design and infrastructure with a focus on safety.

An image of stadium seats at Petco Park in San Diego, with new buildings under construction nearby in the background.

Density Bonuses

A density bonus offers development permissions beyond what's allowed by a zoning code as an incentive for developers to contribute to desired policy goals. Density bonus programs can offer numerous forms of incentives, and can be used as an incentive to address a variety of policy goals.

Wastewater California

CEQA

Designed to assess the environmental impacts of new projects and provide mitigation measures, the California Environmental Quality Act (CEQA) has a controversial history, sometimes serving as a convenient tool for groups intent on stopping or slowing development.

NIMBY Sign

NIMBYs

One of the most politically charged and controversial terms in planning, the acronym NIMBY stands for Not In My Back Yard.

I-84 to I-5 Interstate Freeway in Portland Oregon with Long Exposure Vehicle Traffic Motion

Vehicle Miles Traveled

A measure of the demand for vehicle travel on public roadways, VMT provides a metric for evaluating the potential impact of road projects and developments and could become an increasingly useful tool for assessing road usage taxes.

Single-Family Housing Construction

Entitlements

In the context of planning and development, an entitlement is the legal agreement between a government and a landowner to allow a proposed development.

Empty Road

Car-Centric Planning

'Car-centric planning' refers to urban planning that privileges the private automobile as a primary transportation mode, often to the exclusion of people who walk, bike, or use public transit.

Colorado

Discretionary Approval

Discretionary approval requires an appointed or elected body of officials to decide whether or not to proceed with a development. Discretionary approval is usually reserved for development proposals that don't conform to zoning or building codes, but other regulatory triggers can also create the need for a discretionary approval process.

An image of stadium seats at Petco Park in San Diego, with new buildings under construction nearby in the background.

Development Approval Process

A development approval process decides whether or not to allow a proposed development project to proceed with construction. There is plenty of room for interpretation, both legal and political, about what a development approval process can or should entail.

walkable street

Walkability

Walkability refers to the ability to safely walk to amenities within a reasonable distance, usually defined as a walk of 30 minutes or less.

Garden City

Garden City

Born as a reaction to the crowded, dirty conditions in turn-of-the-century London and other industrial cities, the Garden City movement offers an idealized planned community designed to join elements of town and country.

Lyft

Transportation Network Companies

Transportation Network Companies (TNCs), provide on-demand transportation services through app-based platforms to create a new level of convenience for riders—and a host of challenges for policymakers and regulators.

An overhead image of a large wooden building as it's being constructed.

By-Right Development

A by-right approval (also known as an as-of-right approval) is granted when a development proposal strictly conforms to zoning and building codes and, thus, qualifies for construction without requiring discretionary approval.

Transit Oriented Development

Smart Growth

Smart growth describes an approach to planning and development that prioritizes compact built environments, designed for benefits to the economy and the environment.

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Chaddick Institute at DePaul University

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Cohousing Association of the US

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City of Crystal River Form-Based Land Development Code

City of Crystal River

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Sun City Center Community Association, Inc

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City of Mesa

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