The Impervious Surface 2021 dataset is a collection of polygon features derived from Calgary Digital Aerial Survey mapping linework which have been determined as impervious. Impervious surfaces are defined as any material which will seal the soil surface, impede water infiltration, collect solar heat or deprive tree or vegetation roots of aeration. Impervious surfaces effect many aspects of our City, including storm run off volumes, pollutant concentrations and drainage. The City must understand and manage the amount of impervious surfaces carefully to ensure the ongoing health and vitality of the municipality and the environment. To learn more about other DAS products available, visit Digital Aerial Survey

This chart shows weight per cent composition grouped by material category.
The multi-family results represent garbage bin waste from multi-family complexes, and represents the pooled average of samples in each of the four seasons of 2019 (40 samples). The multi-family developments sampled included both low rise and high rise types, and all were customers of The City’s Commercial Collections service.
Waste Composition studies are periodically conducted by Waste and Recycling Services to help assess the performance of diversion and education programs and inform improvements and new program design.

Describes the types of Planting Areas, beds or container locations, maintained by Calgary Parks or located on lands under Calgary Parks Stewardship. They include Shrub beds, flower beds (annual and/or perennial), tree beds, planter or standing containers area and hanging basket areas.

Every year in May, The City conducts the Central Business District (CBD) cordon count. The cordon count is performed at 31 locations around the CBD over a three week time period, collecting data on how people travel into and out of downtown Calgary. The CBD cordon circles the downtown with the Bow River to the north and the railway tracks to the south and from 11 Street in the west to the Elbow River in the east. These data represent the total number of persons entering (inbound) and exiting (outbound) at each location, by modes, during a 16 hour time period. This raw dataset is NOT normalized to average weekday. It is a snapshot of the inbound and outbound activity on a single day at these locations and reflects conditions specific to that day such as construction, lane closures, weather, etc. Therefore, data may not be directly comparable between locations or years.
*Attachment is a summary of the inbound and outbound totals and mode of travel.* For additional information on cordon counts, see About --> Source URL.

The Calgary Equity Index Overlay Statistics are derived from Citizen Satisfaction surveys and census demographics.
The Calgary Equity Index is a decision-making tool designed to measure equity in Calgary, based on a social determinant of health (SDOH) framework. The SDOH are the range of interacting social and economic conditions that influence people’s health and well-being. This index provides an equity lens to examine the ways in which social and economic conditions are experienced and distributed among populations. It will help the City examine where inequities exist in different areas. Information is available for 113 Community Service Areas (CSAs) across Calgary. The CSAs were created by combining two adjacent Census Tracts to reach a population of around 10,000. The CSAs are numbered from 1 to 113, and are displayed on the map.

This file lists SDAB decisions since 2014. Additional information about the Subdivision and Development Appeal Board can be found at the Subdivision and Development Appeal Board page on calgary.sdab.ca.

(Note: Updated inundation maps for 1:2 to 1:1000 floods are available from Alberta Environment and Parks (2020). The new draft maps can be viewed here: https://floods.alberta.ca/?app_code=FI&mapType=Draft)

These inundation maps show whether a property is at risk for various sized river floods. The size of flood shown on this map has a 1/8 or a 12.5% chance of occurring in any year.

The three distinct types of inundation shown on the maps are:
o Inundation - Area flooded overland due to riverbank overtopping.
o Isolated - Low lying areas that will not be wet from riverbank overtopping, but may experience groundwater seepage or stormwater backup.
o Potential failure of flood protection barrier - Low lying areas that could be flooded if an existing permanent flood protection barrier were to fail.

The flood areas shown were mapped in 2015 jointly by Alberta Environment and Parks and the City of Calgary, using the best available hydrologic and hydraulic data and models. As such, the flooding shown reflects 2015 conditions, hydrology and topography. The effects of mitigation measures (changes to reservoirs/dams or barriers) built since 2015 are not included. There is uncertainty inherent in predicting the effects of flood events, and this uncertainty increases for floods with less than a 1% chance of occurrence in any year. Any use of this data must recognizing the uncertainty with regards to the exact location and extent of flooding.

More information on flood mapping for Calgary is available at calgary.ca/floodinfo:
http://www.calgary.ca/UEP/Water/Pages/Flood-Info/Flood-Information.aspx?redirect=/floodinfo
For Calgary's River Flood story, see: https://maps.calgary.ca/RiverFlooding/

Referendum voting station results of the 2021 Election. Daylight Savings Referendum by voting station.

This file lists SDAB decisions since 2014. Additional information about the Subdivision and Development Appeal Board can be found at the Subdivision and Development Appeal Board page on calgary.sdab.ca.