This glossary is organized to help you understand some of the specialized terms used on our Website.
It identifies acronyms, names and expressions that are used in our data sets.
Areas of Natural and Scientific Interest. There are two kinds of ANSIs – Earth Science ANSIs and Life Science ANSIs
Census Metropolitan Area
Environmentally Significant Area
Federation of Canadian Municipalities
Forward Sortation Areas
Federal Electoral District
Greater Toronto Area, which includes the City of Toronto and the Regions of Halton, Peel, York and Durham.
Greater Toronto Area and Hamilton
Quality of Life Reporting System
Low Income Cut-Off
Construction Activity Terms
Includes dwelling units found in a wide range of structures such as:
- Apartments proper
- Dwelling units over or at the rear of a store or other non-residential structure.
Please note that the above is the structural definition of apartments. The ownership type (owned vs. rented), therefore, may vary.
Developers and residents need to obtain a building permit from their city or town in order to legally construct or demolish a structure. Building permits are an early measure of development activity.
A new dwelling created by converting an existing structure or use.
Double or Semi-Detached Dwelling
Each of two dwellings separated by a common wall or by a garage - but not attached to any other building - and surrounded on all other sides by open space.
A single family dwelling or a semi is considered a housing completion when 90 per cent or more of the structure is complete. A row dwelling or apartment is considered a housing completion when 90 per cent of the units are ready for occupancy.
A new residential development is considered a housing start when all of its footings are in place. A footing is also referred to as the concrete foundation of a structure.
A single dwelling used as a place of residence capable of being moved on short notice such as:
- Mobile homes
- Recreation vehicles
- Motor homes
- Railroad cars
A unit is considered a multiple unit if it is part of a larger structure that contains at least one other unit. Units in apartment buildings, row houses and double or semi-detached buildings are considered multiple units.
Other Single Attached House
A single dwelling attached to another building or occasionally to another dwelling that does not fall into any other category.
Row House / Row Dwelling
One of three or more dwellings joined side by side but not having any other dwellings either above or below.
Semi-Detached or Double Dwelling
Please see Double or Semi-Detached Dwelling.
Single and Multiple Unit Completions
A new house is considered a housing completion when the house is 90 per cent complete; a structure with multiple units is considered a housing completion when 90 per cent of its units are ready for occupancy.
Single and Multiple Unit Starts
A new house or structure with multiple units is considered a housing start when 100 per cent of the concrete foundation is in place.
This type of dwelling is commonly called a 'single house'. It comprises a one-dwelling unit completely separated on all sides from any other dwelling or structure.
This term can be used interchangeably with the term 'single dwelling'. The term 'single unit' is most often used when making comparisons between single dwellings and multiple units (structures that contain multiple dwellings).
Vacancy rates are calculated by dividing the number of vacant units by the total number of units.
A unit is considered 'vacant' if it is unoccupied and ready to be rented.
Value of Non-Residential Building Permits Issued
Building permits are issued in the residential, industrial, commercial and institutional sectors. The value of non-residential building permits issued is the value of building permits issued in the industrial, commercial and institutional sectors.
Value of Residential Building Permits Issued
Building permits are issued in the residential, industrial, commercial and institutional sectors. The value of residential building permits issued is the value of building permits issued in the residential sector.
Earth Science Areas of Natural and Scientific Interest
Significant representative examples of the bedrock, fossil and landforms in Ontario. They include examples of ongoing geological processes.
Environmentally Significant Area
A place where natural features warrant special protection.
A set of policies outlined in the Regional Official Plan that were written to ensure that Peel’s natural features and their functions will be preserved over time.
Life Science Areas of Natural and Scientific Interest
Significant representative parts of natural landscapes in Ontario, such as types of forests, valleys, prairies, wetlands and their supporting environments. These areas have been relatively undisturbed over time and are home to many diverse kinds of wildlife and plants.
The area of land that is drained by a tributary of a main river.
The area of land that is drained by a river and its tributaries.
A community of trees, shrubs and ground vegetation.
General Census Terms
Census Division (CD)
Census divisions are counties, regional districts or regional municipalities. Peel is a census division.
A common-law or married couple living with or without children, or a single (or lone) parent living with his or her children.
Census Metropolitan Area (CMA)
One or more municipalities that surround a major urban core. The major urban core must have a population of at least 100,000 people. Peel is part of the Toronto CMA. See the Toronto CMA map
The rate of people counted more than once in the Census.
Census Subdivision (CSD)
Census subdivisions are cities, towns, villages and townships that are incorporated into census divisions. Mississauga, Brampton and Caledon are census subdivisions.
Census Tract (CT)
Census tracts are relatively permanent neighbourhoods that are home to about 4,000 people. Census tract boundaries are usually defined by physical features such as roads, streams and railroad tracks.
The rate of people missed in the Census.
Dissemination Area (DA)
Dissemination areas are home to about 500 people and are based on the distance that a census enumerator can easily walk. Dissemination areas fit into census tracts.
Two or more people living in the same dwelling that are related to each other by blood, marriage, common-law, or adoption.
The ethnic or cultural origin of a respondent’s ancestors.
Federal Electoral District (FED)
Federal electoral districts are also known as federal ridings. They are served by a member of parliament.
Forward Sortation Areas (FSAs)
Forward sortation areas are the areas represented by the first three digits of a postal code.
The language (or languages) spoken most frequently at the respondent’s home.
Two or more persons living in the same dwelling who may or may not be related. A person can be a member of only one household. All of the people living in a dwelling unit comprise one household. Households may contain more than one family.
A person who has been granted permission to live in Canada indefinitely by the Immigration Authorities.
Low Income Cut-Off (LICO)
Low Income Cut-Offs are the minimum dollar amounts needed to purchase food, shelter and clothing. They vary based on family and community size.
This variable tracks whether a person has moved since the last census was conducted.
The first language learned in childhood and still understood by the respondent.
Net Census Undercoverage
The net rate of people missed in the Census. Calculated using the following formula: Rate of persons missed in the Census minus rate of persons counted more than once in the Census.
A person who immigrated to Canada within a certain number of years before the previous census.
Some tables refer to a Recent Immigrant as a person who immigrated to Canada within the previous 5 years, while other tables refer to a Recent Immigrant as a person who immigrated to Canada within the previous 10 years.
Because this definition can vary, it is always wise to check whether or not the term 'Recent Immigrant' refers to the 5 year or 10 year time span.
Please see Census Metropolitan Area.
A person is considered a visible minority if he or she is non-Caucasian in race or non-white in colour. This definition is based on the Employment Equity Act. (This information is collected for the entire population except for institutional residents and aboriginal persons.)
Health Data Terms
External Causes of Hospitalization
If a person is hospitalized because of an injury or poisoning, they are asked how they received the injury or to describe the nature of the poisoning.
For example, if a person is hospitalized because they fell off of a ladder, they would be entered into the External Causes of Hospitalization database under 'Accidental Falls'.
Describes the reason why a person was discharged from hospital.
PYLL (Potential Years of Life Lost)
This number is calculated by subtracting the age of a prematurely deceased person from 75.
Housing Data Terms
PATH (Peel Access to Housing)
The application centre for rent-geared-to-income and social housing in Peel.
Labour Force Data Terms
A person was considered employed if they worked for pay during the week preceding Census Day or worked without pay on a family farm, business or professional practice.
This definition also includes people who were absent from work — with or without pay — during the week preceding Census Day as a result of vacation or any other justified circumstance.
The number of persons employed in the week (Sunday to Saturday) prior to Census Day, expressed as a percentage of the total population, 15 years of age and over, excluding institutional residents.
All persons 15 years of age and over, excluding institutional residents, who were either employed or unemployed during the week (Sunday to Saturday) prior to Census day.
Not in the Labour Force
A person was considered to be 'Not in the Labour Force' if they were neither employed nor unemployed. This includes students, retired persons, and seasonal workers during the off-season who were not looking for work.
The total labour force in the week (Sunday to Saturday) prior to Census Day, expressed as a percentage of the population 15 years of age and over, excluding institutional residents.
A person was considered unemployed if he or she was without paid work or without pay in self-employment work, but were available to work.
To be considered unemployed, a person had to have either been on a temporary lay-off from a job they were expected to return to; looked for paid work within the last four weeks; or had arrangements to start a job in four weeks or less.
The unemployed labour force expressed as a percentage of the total labour force in the week (Sunday to Saturday) prior to Census Day.
Transportation Data Terms
Includes vehicles used for purposes other than personal transportation, such as vans, pick-up trucks and jeeps used for commercial purposes, police cars, ambulances, public utility cars and hearses.
A truck that has only two axles with double tires on the rear axle. Examples include delivery and moving trucks.
A truck that has three or more axles. Examples include cement trucks, dump trucks and tractor-trailer trucks.
- Statistics Canada: 2001 Census Dictionary
- Region of Peel Health Department
- Canada Mortgage and Housing Corporation