Appendix E: Glossary

Chapter Appendices


Access to Jobs
The availability of jobs within a certain region and the ease with which individuals can travel to and from those jobs.
Active Lifestyle
A description of a way of life that integrates physical activity into everyday routines, such as biking to work or walking to the store.
Active Transportation
Bicycling, walking, running, or jogging from one location to another.
Air Quality Advisory Committee
The Air Quality Advisory Committee has an advisory role to the East-West Gateway Board of Directors and serves as a public forum for the dissemination of information and receipt of feedback about air quality issues. The Committee is also responsible for the coordination of air quality planning activities in the region.
Alluvial Soil
Soil that was deposited by running water and often found in a floodplain.
See Air Quality Advisory Committee.
Arterial Road System
The network of major thoroughfares designed for high volumes of traffic passing through an area.


A reference to the conditions of an area that allows a person to use a bicycle easily and safely. It is also a performance indicator that measures the total miles of bicycle facilities including on and off road.
A stormwater runoff conveyance system used to partially treat water quality, slow surface flow, diminish flooding potential and move stormwater away from infrastructure.
Short for biotechnology, this term refers to the use of microorganisms, including yeast and bacteria, to perform specific industrial or manufacturing processes, such as producing antibiotics and synthetic hormones.
Blue, Gray & Green Infrastructure
The total system of water, landscape, and ecological systems. Blue infrastructure refers to streams and rivers that naturally carry large amounts of water. Gray infrastructure refers to the piping and sewer system, which carries waste and stormwater. Green infrastructure is the more environmentally friendly options for managing stormwater, such as bioswales, pervious pavement and the use of vegetation to reduce runoff.
Brownfield Redevelopment
Refers to the redevelopment of property, which may have been contaminated by a hazardous substance, pollutant or contaminant. (A brownfield is land that has been previously developed and may contain some hazardous substances, which could be a liability to a purchaser or new developer.)
Building Efficiency
Energy use per square foot of a building. It is also a performance indicator that measures the total square feet of third party verified green buildings and sites.
Building Energy Efficiency
Reducing building energy use, by using commercial and institutional building standards based upon verifiable green building codes (i.e. Leadership in Energy & Environmental Design (LEED), Energy Star, and Sustainable Sites).
Bus Rapid Transit (BRT)
A mass transit system that is bus-based, and is designed for maximum system efficiency and to save riders travel time. It usually includes fixed “stations” to provide more certainty of continued service than a typical bus route.


Carbon Sink
A natural or manmade reservoir that holds carbon-containing chemical compounds for an indefinite period; they are used to remove carbon dioxide from the atmosphere. A tree can be a carbon sink.
Chained Dollars
A method of adjusting dollar amounts to account for inflation. Over time, the amount that an individual or a household can purchase with a given amount of money can change. Aside from the change in the prices of specific goods and services, the "basket" of goods and services purchased by a household may change. For example, if the price of apple juice increases dramatically, households might switch to a substitute, such as grape juice. Chained dollars take substitutions such as this into account by weighting prices of goods and services by the quantities of goods and services consumed.
CityArchRiver 2015
A project to enhance the Gateway Arch experience through landscape improvements to the Arch Grounds, new museum exhibits, new community-oriented event spaces, and enhanced connectivity to downtown St. Louis.
City Board Bill 297
City of St. Louis – This bill repealed a previous ordinance and enacted a new ordinance pertaining to public works projects, Tax Increment Financed projects, and St. Louis City bond projects. It established apprenticeship training, workforce diversity, and a Community Jobs Board.
Civic Diversity
Representation and involvement of citizens from diverse backgrounds.
Climate Change
Any significant change in the measures of climate lasting for an extended period of time including major changes in temperature, precipitation, or wind patterns. Climate change is happening now, and is marked by the rising average temperatures on earth, changing precipitation patterns, and an increase in the frequency, intensity and duration of extreme weather-related events.
Climate Change Action Plan
A plan that lays out strategies and policies for addressing climate change by reducing greenhouse gas emissions and developing adaptation strategies.
See Community Organizations Active in Disaster.
College Attainment
The percent of adults 25 years of age or older, that have attained a bachelor’s degree or higher from an accredited university or college.
Community Engagement
The process by which public input, from a broad range of interest groups, is sought.
Community Organizations Active in Disaster (COAD)
A group based within a community or geographic area that is composed of representatives from public, private and not-for-profit agencies that work to strengthen area-wide disaster coordination by sharing programs, policies, information, joint planning and training.
Community Rating System (CRS)
A voluntary incentive program administered by the Federal Emergency Management Agency (FEMA) that encourages communities to reduce flood damages through floodplain management and flood awareness activities. Communities that participate can earn flood insurance premium rate discounts to reflect the reduced flood risk resulting from the community actions.
Community Reinvestment Act (CRA)
Legislation passed in 1977, holds banks and savings institutions accountable for meeting the credit needs of all communities they are chartered to serve, including low- and moderate-income communities. The Community Reinvestment Act encourages banks to initiate funding and services to community-based programs.
Community Types
A description of a location that describes its developmental characteristics. Classifications are based on the Center for Applied Transect Studies Transect Zones and range from Urban Core, which is the most industrial and dense, to Rural, which is the least dense.
Complete Streets
Streets designed and constructed to enable safe access for all users, including pedestrians, bicyclists, motorists and transit riders of all ages and abilities.
Concentrated Poverty
An area with a poverty rate over 40 percent.
Construction Efficiency
Also known as green building, this is a term used to describe the environmentally responsible and resource-efficient building processes used to create a structure, including the use of natural and recycled building materials, high-efficiency lighting, and native landscaping.
Cool Cities
The Sierra Club’s Cool Cities initiative recognizes cities that have signed the U.S. Mayors Climate Protection Agreement and provides guidelines and goals for reducing local emissions.
Founded in 2002, Cortex is a hub for bioscience and technology research, development and commercialization, anchoring startups and established companies in St. Louis. It provides state-of-the-art facilities to support promising technological advances.
See Crime Prevention Through Environmental Design.
See Community Reinvestment Act.
Crime Prevention Through Environmental Design (CPTED)
Strategies to create safer environment by modifying the physical surroundings and conditions that deter criminal activity. Four components of Crime Prevention Through Environmental Design are territorial reinforcement, access control, surveillance, and property maintenance.
See Community Rating System.
Cultural Diversity
The recognition of having various populations integrated on the basis of race, gender, ethnicity, socioeconomics, or education level.


Data Portal
The OneSTL regional data exchange,, is a website where credible researchers can upload data concerning the St. Louis region. This data is available for anyone to use. Saint Louis University is maintaining this website.
Disaster Response
This term pertains to evacuation and warning, search and rescue, assessing damage, providing assistance, and the restoration of infrastructure immediately following a disaster.
Diversified Economy
A term used to describe a market that has a broad and wide range of sectors such that it does not rely on any one sector for its growth..


Eastern Missouri Transportation Coordinating Council (EMTCC)
A voluntary council composed of community and agency leaders working to address the need for mobility management and transportation coordination.
Ecological Significance
A system for evaluating larger areas of land, based on the current diversity of biological species found there, the size of the area, and how well it is connected to other ecologically significant areas and its potential for improvement of diversity.
Economic Diversification
The extent to which a community’s economy (and jobs) is spread out across multiple sectors.
Economic Resiliency
A term used to describe a community’s ability to bounce back after an economic downturn. A more resilient community will be able to revive pre-downturn economic growth trends quicker than that of a less resilient community.
Economically Intergrated Community
Diverse and nondiscriminatory communities that contain various types of job opportunities and housing choices for a wide range of incomes and lifestyles.
Employment Transit Access
A performance indicator that analyzes if workers have access to transit by calculating the percent of job sites within a quarter mile of a transit stop.
See Eastern Missouri Transportation Coordinating Council.
Energy Diversity
Refers to the concept of a diversified energy portfolio which would include, but not be limited to, wind, solar, fossil fuels, nuclear, hydro-electric, and geothermal fuels.
Ethnically Integrated Community
Racially and ethnically diverse places that respect and value differences among community activities and emphasizes the importance of community integration.


Fiscal Capacity
The measurement of a government or organization’s ability to carry out its current and future activities (i.e. capital infrastructure improvements and basic programmatic services). For a government, it is the ability to receive and manage the revenue from the economic activity within its geographic borders for public spending over the long term.
Flood Resilience
The ability to cope with flooding and to recover from flooding to prevent deaths and injuries and minimize economic losses.
Floodplain Management
Corrective and preventative measures to reduce erosion, preserve natural habitat, and reduce the potential for flood damage. Measures include special-purpose floodplain ordinances, addressing drainage issues, floodproofing buildings, and protecting riparian habitat.
Form-Based Code
In urban development and planning, form-based codes foster predictable built results by using physical form instead of separation of uses as the principle for the code. Form-based codes focus more on how a certain area looks and less on having similar types of businesses near one another.


Geographic Information Systems (GIS)
The integration of hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information. Using geographic information systems software produces maps that are helpful in showing data and illustrating narratives.
See Greenhouse Gas.
Gini Index
An internationally prescribed index that measures the extent to which the distribution of income among individuals or households within an economy deviates from a perfectly equal distribution. A Gini index of 0.00 represents perfect equality, while an index of 1.00 implies perfect inequality.
See Geographic Information Systems.
See Gross Metropolitan Product.
Government Fiscal Resiliency
Refers to the concept of building strong local government financial balance sheets that can withstand fiscal shocks due to emergencies, economic downturns, and other crises.
Great Streets
The St. Louis Great Streets Initiative was created in early 2006 to expand the way communities think about their streets. Rather than viewing a roadway project as solely a way to move more cars and trucks faster, the goal is to trigger economic and social benefits by centering communities around interesting, lively and attractive streets that serve all modes of transportation.
Green Business Challenge
A program of the St. Louis Regional Chamber that helps guide companies through a scorecard of strategies to reduce energy, waste and water consumption, engage employees, improve indoor environmental quality, and expand clean transportation options.
Green Infrastructure
A network of open space which may include wetlands, forests, and parks that reduces stormwater overflows, mitigates flooding, and improves water quality.
Greenhouse Gases (GHG)
Compounds that absorb infrared radiation in the atmosphere, which prevents heat from escaping. The primary types of GHGs are carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).
A continuous belt of undeveloped land preserved for recreational use or environmental protection. A greenway could contain a network of trails, recreational easements and parks.
Gross Domestic Product (GDP)
The market value of all goods and services produced within a nation in a given period of time.
Gross Metropolitan Product (GMP)
The market value of all goods and services produced within a metropolitan area in a given period of time.


Hazard Mitigation
Any action taken to reduce or eliminate the long-term risk to life and property from natural hazards.
Heat/Cold Morality
The number of deaths related to excessive natural heat or excessive natural cold.
Housing Affordability
A household’s ability to pay their rent or mortgage that should typically not exceed 30 percent of their annual income.
Housing Choice
Availability of housing in a variety of safe and decent housing types from which to choose for people in all income ranges.
Housing Stock
Consists of the number and type of housing units (apartments, single-family houses, manufactured housing, new construction, and vacant housing units).
H+T Affordability
Proportion of household income spent on housing and transportation costs.
See U.S. Department of Housing and Urban Development.


See Interagency Consultation Group.
Impervious Surfaces
Parking lots, streets, sidewalks and buildings that do not allow water to permeate through the surface. These impervious surfaces contribute to a significant to an increase in polluted stormwater runoff.
Income Inequality
A measurement of the distribution of assets, wealth, or income that highlights the gap between individuals or households.
Inclusion Programs
A broad term given to any policy or program within the hiring and recruiting process designed to attract individuals from all walks of life, without regard to race, color, religion, sex, or national origin.
Inclusionary Zoning
Regulations allocating a percentage of new residential housing units for low- and moderate-income. In exchange, developers may receive incentives or development rights such as density bonuses, zoning variances and/or expedited or low-cost permits that decrease construction costs.
The physical elements of society that provides for or enhances human living conditions and economic development. Infrastructure most often refers to roads, bridges, railroads, water supply, sewers, power supply, and communications.
Infill Site
New development on vacant land within an existing community, neighborhood, or district.
Interagency Consultation Group (IACG)
The IACG consists of representatives from East-West Gateway and federal, state and local air and transportation agencies. The IACG oversees the air quality conformity determination for the Transportation Improvement Program (TIP) and the Long Range Transportation Plan.
Inter-Jurisdictional Cooperation
Communities or governmental districts working together to accomplish a determined goal.
A transportation system connecting or including different modes of transportation.






Land Bank
Land banks are governmental or nongovernmental non-profit entities created to acquire, hold, manage and develop vacant properties. The goal of a land bank is to turn these properties into productive use, transforming neighborhood liabilities into assets.
Land Preservation
Protecting agricultural, wildlife, and undeveloped lands for its natural resources, ecosystems, and animal life.
Refers to people who are lesbian, gay, bisexual, transgender, or queer/questioning.
See Low Impact Development.
See Low Income Housing Tax Credit.
Livable Community
A community that has a high number of factors that contribute to quality of life, including built and natural environments, economic prosperity and growth, social stability and equity, and educational, cultural, entertainment, and recreational opportunities.
Living Wage
The minimum wage necessary for a person working full-time to have income necessary to meet basic needs, including food, shelter, and clothing.
Low Impact Development (LID)
This commonly refers to land development practices that work to keep the management of stormwater as close to its source as possible, generally by working with the natural environmental systems present.
Low Income Housing Tax Credit (LIHTC)
A HUD indirect subsidy to developers to finance the development of affordable rental housing for low-income households. Developers are allocated tax credits that they can then sell to investors to raise capital or equity for their projects.


See Municipal Equality Index.
Metropolitan Statistical Area (MSA)
A designation of the U.S. Census Bureau, characterized by a core urban area with a substantial population at its center, surrounded by smaller communities, all of which have a high degree of economic and social interaction.
Mixed-Income Housing
Housing within a complex, development or geography containing a wide range price for rental units that are affordable to people of a variety of income levels.
See Metropolitan Statistical Area.
Multi-Modal System
Refers to the integration of multiple modes of transport into a transportation system.
Municipal Building Codes
A set of minimum municipal building standards established in municipal regulatory codes and administered by the local community or government.
Municipal Equality Index (MEI)
Reporting mechanism examining the laws, policies, and services of municipalities and rates them on the basis of their inclusivity of lesbian, gay, bisexual, and transgender people who live and work there.


Natural Communities
The assemblage of natural resources, plants, and animals found in particular physical environments and influenced by soil, slope, sun, shade, temperature and availability of water.
Natural Disaster
A major hazard resulting from the natural processes of Earth, including volcanic eruptions, tornados, floods, and earthquakes.
Natural Resource Planning
Management focusing on the protection and stewardship of air, water, land and other natural resources.
National Flood Insurance Program as administered by the Federal Emergency Management Agency (FEMA).


Open Streets
A community engagement activity that a community can adopt. On a specific date and for a specific time, a portion of city roads are closed to motor vehicles and are open to pedestrians and cyclists. Such a program provides an opportunity for residents to be physically active, socialize and explore their neighborhood.
Overlay District
Used in urban development and planning, this tool creates a special zoning district on top of existing zones. The overlay district can share boundaries with the base zone or cut across base zone boundaries and is typically used to protect a specific resource or to guide development within a certain area.


Pathways to Prosperity
A nation-wide initiative to provide students rigorous academic pathways linked to economic and labor market needs. These pathways must transition seamlessly from high school to post-secondary institutions and support active industry involvement in student learning.
Per Capita
Per person. Per capita allows one to compare statistics (e.g. income) for each person in a given area or unit of government to that of others.
Point Source Pollution
A single, identifiable source of pollution such as a pipe, ditch, ship, or smokestack that distributes pollutants into the environment.
Precursor Emissions
The gas emitted from incomplete combustion from motor vehicles, home furnaces and industry, which is released into the air and leads to buildup of ground level ozone under specific circumstances.
Public Transit Accessibility
A measure by which mass transit systems are accessible by people of all ages, abilities, and socio-economic class.


See Qualified Allocation Plan.
Qualified Allocation Plan
The mechanism by which a state housing finance agency provides details for the selection criteria and application requirements for housing tax credits and tax-exempt bonds.


Racial Disparities
Discrimination among people who are not of the same racial background.
Racially Concentrated Area of Poverty (RCAP)
An area with a high poverty rate and a non-white majority population. In the Fair Housing Equity Assessment (FHEA), an RCAP is defined as a census tract that consists of 50 percent or higher non-white population and has a family poverty rate of at least 40 percent or 300 percent of the area’s mean family poverty rate, whichever is lower.
Strategies and mechanisms that manage stormwater to reduce the impact of stormwater runoff. (Also written as RainScaping)
See Racially Concentrated Area of Poverty.
Ready by 21
A nation-wide educational initiative, which provides clear standards, learning tools and monitoring systems for local educators and political leaders.
Regional Arts Commission
The Regional Arts Commission encourages and fosters the arts and cultural institutions in the City of St. Louis and St. Louis County, and contributes to the economic development of the area through a strong presence of the arts.
Regional Fragmentation
This term usually refers to the large number of local government units in the St. Louis bi-state region, particularly in St. Louis County.
Regional Growth Center
A relatively compact development hub within a larger region where employment, shopping, and other economic activities are in close proximity. These areas draw a workforce from throughout the region.
Regional Planning
Developing plans for multiple cities and counties in a geographic location. OneSTL is a regional plan for the St. Louis bi-state region that includes eight counties.
Regional Sustainable Communities Planning Grant
A federal grant program that supports local efforts to bring a region together to improve housing, economic and workforce development, environmental protection and infrastructure development. Eleven partner organizations in St. Louis applied for this grant that partially funded OneSTL.
Regional Transportation Plan (RTP) 2045
The RTP is the next update to the St. Louis region’s long-range plan and will assess the region’s transportation facility, service and policy needs over the 30 year period from 2015 to 2045.
Rehabilitation Subcodes
First developed in the late 1990s to establish modern, up-to-date codes that address the repair, alteration, addition or change of occupancy in existing buildings.
Residential Transit Access
A performance indicator that analyzes if residents have access to transit by calculating the percent of households within a quarter mile of a transit stop.
Responsible Banking Practices
Ordinances designed to ensure and increase the amount of responsible loans, investments, and financial services to modest-income and minority neighborhoods.
Road Diet
The act of removing the total number of vehicular road lanes or decreasing the lane width in order to achieve improvements in road safety and accessibility. Road diets typically occur when an increase in the walkability or bikeability of a particular roadway is desired.
RTP 2045
See Regional Transportation Plan 2045.


Scenario Planning
A strategic planning method that organizations use to create flexible, long-term plans. In economic development, scenario planning can be used to anticipate where and how a region may develop.
Section 8 Voucher
A Federal government program assisting very low-income families, the elderly and the disabled, to afford decent, safe, and sanitary housing in the private market. Also known as the housing choice voucher program.
Sewer Infrastructure
The system of pipes, gutters, pumps, and other equipment used to move wastewater from residential, commercial, and industrial establishments to wastewater treatment facilities; and to move stormwater from streets, sidewalks, and properties to lakes, rivers, streams, or wastewater treatment facilities.
Single-Use Zoning Districts
Generally refers to the establishment of single purpose areas within a community or county (e.g. low-density residential use).
Site Design
Policies/requirements to manage or influence land use or development of the built environment. Policies can be for transportation, stormwater management, parking or natural environment.
Social Capital
Networks of relationships among people who live and work in a particular society, enabling that society to function effectively.
Social Equity
The measure of how well a community provides fair and affordable goods and services for all of its members.
A 501(c) (3) not-for-profit organization that combines technology with customer service to help the disabled, disaster victims and low-income individuals find housing.
Solid Waste Management Districts
Special purpose districts established in Missouri by state law and empowered to administer and oversee recycling and solid waste grant programs within their boundaries.
Source of Income Protection
Legislation prohibiting the rejection or exclusion of people who use government assistance programs such as Section 8 Vouchers, Social Security, Temporary Assistance for Needy Families, to pay for rent.
Stably Integrated Community
Neighborhoods characterized as consistently racially and socioeconomically diverse.
St. Louis Mosaic Project
A service program of the World Trade Center St. Louis, focused on immigrant advancement objectives including reducing immigrant hiring barriers, developing hiring solutions for skilled foreign talent, and attracting and supporting international students for earlier and deeper integration into the St. Louis community.
State Revolving Loan Fund
The state revolving loan fund refers to the EPA grant program that is managed at the state level and provides subsidized low interest loans to preserve and protect water resources through planning, design and construction of drinking water and wastewater systems, and non-point source facilities.
A program administered by the National Weather Service that certifies communities for preparing for severe weather through advanced planning, education and awareness.
Sustainable Development
Development that meets a society’s current needs without compromising the ability of future generations to meet their needs.
Sustainable Solutions Toolkit
An online database of sustainable best practices for local governments, communities, businesses, nonprofits and individuals to use in the St. Louis region. The Toolkit is a product of the OneSTL project and is found at


See Transportation Demand Management.
See Transit Oriented Development.
See Sustainable Solutions Toolkit.
Transit Ridership
The number of unlinked passanger trips on a transit service.
Transit Oriented Development (TOD)
Mixed-use development within walking distance of a transit station. Mixed-use developments are developments with commercial and mix-income residential communities. There is a regional effort to establish Transit oriented development communities near MetroLink stations.
As used in planning and in a governmental context, transparency generally implies openness, communication, and accountability. Transparency is operating in such a way that it is easy for others to see what actions are performed and how decisions are made.
Transportation Assets
The physical elements of the existing transportation system, including roads, bridges, tunnels, rails, signs and roadside features.
Transportation Choice
The quantity and quality of transportation options, including walk, bike, transit, or automobile.
Transportation Demand Management (TDM)
Strategies and policies that reduce travel demand or redistribute demand in time or space. TDM reduces congestion and reduces the need for infrastructure investments.
Tree Canopy
Layers of leaves, branches and stems that provide shade and may reduce summer peak temperatures, provide aesthetic qualities, in contrast to areas without trees or shade.
Tree City USA
The Tree City USA program is a national program that provides the framework for community forestry management for cities and towns. In receiving Tree City USA designation, communities are recognized as having demonstrated a commitment to caring for and managing their public trees.


UNESCO World Heritage Site
A United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Site is a place (such as a forest, mountain, lake, island, desert, monument, building, complex or city) that is listed by UNESCO as having special cultural or physical international significance.
Unified Emergency Response System
A process that facilitates the allocation of resources, incident prioritization, and coordination across all levels of government and emergency response such as emergency medical, fire, and police for large-scale incidents and emergencies. The system is also known as a Multiagency Coordination System which is a part of the Federal Incident Command standard.
Universal Design
Human-centered design process through which products and the built environment are developed to be aesthetic and usable by all, regardless of age, ability or status in life; enabling and empowering a diverse population by improving human performance, health, wellness and social participation.
U.S. Department of Housing and Urban Development (HUD)
A Cabinet level department in the Federal government, whose mission is to create sustainable and quality affordable housing for everyone regardless of economic status. HUD administers various grants related to housing and economic development, including the grant that funded the creation of OneSTL.


Vehicle Miles Traveled (VMT)
An indicator of the number of miles traveled on roadways by motor vehicles and usually measured for a region or a community.
See Vehicle Miles Traveled.
Volunteery Rate
Volunteer rate refers to the percent of citizen volunteers within the community who participate in civic volunteer activities and community service.
Voter Participation
Refers to the percent of citizens within the community who vote in any given election.


Walk Friendly Community
A program that encourages communities to support walkable environments and to develop walkable streets and places.
Water Quality Scorecard
A scorecard developed by the EPA to help communities review local policies to identify barriers and opportunities for promoting green infrastructure and improving water quality.
The area of land that drains to a common point. The term usually refers to all the land that drains to a particular stream or lake.
Watershed Based Mitigation
A method of addressing water quality that considers the needs and ecological functions of the watershed area, including habitat, connectivity, and the maintenance of upland and wetland systems.
A river, canal, stream, or other route for travel by water.
Waste Diversion Rate
Waste Diversion Rate refers to the percentage of waste diverted from landfills due to reuse, recycling and waste reduction efforts.
Workforce Diversity
The variety of experiences, perspectives, needs, preferences, expectations, and lifestyles present within a certain workforce.






The taxing district established by voters in St. Louis City and St. Louis County funding the St. Louis Zoo, St. Louis Art Museum, St. Louis Science Center, Missouri History Museum and Missouri Botanical Garden. This district is governed by a board consisting of four city residents and four county residents appointed by the mayor of Saint Louis and the St. Louis County executive, respectively.