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Explaining Points of Interest Data ( POI)

What is a point of interest?

Point of interest (POI) data is a type of geographic data that describes specific locations that are of interest to a particular audience or user group. POI data can include a wide range of location-based information, such as the names and addresses of businesses, landmarks, natural features, and other points of interest. This data is often used in mapping and location-based services, such as navigation apps, to help users find and learn more about the places and locations that are relevant to them. POI data can be collected and maintained by a variety of sources, including government agencies, businesses, and individual users.

How is points of interest ( POI) data generatored?

How web traffic and websites generate POI data

Web traffic and websites can generate POI data in a number of different ways. For example, when users visit a website or use a location-based service, the website or service can collect information about their location and the places they visit. This data can then be used to generate POI data, which can include information about the names, addresses, and other details of the locations visited by the users.

Third-party cookies can play a role in generating POI data by providing a way for websites and online platforms to collect and store information about the locations visited by users. When a user visits a website that uses third-party cookies, the website can store a cookie on the user’s device, which can then be used to track the user’s location and other information. This data can be used to generate user-generated POI data, which can include information about the locations visited by the user. Additionally, websites and online platforms may use third-party cookies to collect and store user-generated POI data that is contributed by users, such as the names and addresses of businesses and other points of interest. This data can then be used by other users and applications, such as mapping and location-based services.

User generated points of interest ( POI) data

User-generated POI data is geographic data that is created and contributed by individual users, rather than being collected and maintained by official sources or organizations. User-generated POI data can include a wide range of location-based information, such as the names and addresses of businesses, landmarks, and other points of interest.

This data is often generated and contributed by users who have firsthand knowledge or experience of the locations in question, which can help ensure that the data is accurate and up-to-date. User-generated POI data or crowd sourced POI data can be collected and used in a variety of ways, including in mapping and location-based services, such as navigation apps and online directories. These online platforms may allow users to contribute and edit POI data, platforms like OpenStreetMap are a good example of this allowing users to add and edit POI data, which can be used by other users and applications.

Official sources of POI data

There are many official sources of POI data, including government agencies, businesses and organizations, and online platforms. Some examples of official sources of POI data include:

  • Government agencies, such as the U.S. Census Bureau, local planning departments, and geographic information systems (GIS) departments, collect and maintain POI data as part of their official duties.
  • Businesses and organizations, such as retail stores, restaurants, and other types of establishments, often collect and maintain their own POI data, which includes information about their own locations as well as other relevant points of interest.
  • Online platforms and directories, such as Google Maps and OpenStreetMap, collect and maintain POI data that is contributed and edited by users. This data can be used by other users and applications, such as mapping and location-based services.
  • Telecommunication companies, such as cell phone carriers, often collect and maintain POI data as part of their network planning and optimization efforts.
  • Transportation agencies, such as public transit agencies, collect and maintain POI data to identify and map the locations of bus and train stops, subway stations, and other transit hubs.
  • Nonprofit organizations, such as environmental groups and cultural institutions, often collect and maintain POI data to identify and map the locations of important sites and landmarks.
  • Market research firms, such as Nielsen and GfK, collect and maintain POI data to identify potential locations for conducting surveys and focus groups.

These are just a few examples of the many official sources of POI data. There are many other organizations and institutions that collect and maintain POI data for a variety of purposes.

Challenges associated with the verification of POI data

There are several challenges associated with the verification of POI data. Some of these challenges include:

  • Keeping the data accurate and up-to-date: POI data can change rapidly, as businesses open and close, addresses change, and other factors affect the locations and information included in the data. Verifying POI data requires frequent updates and checks to ensure that the data remains accurate and relevant.
  • Ensuring the data is complete and comprehensive: POI data can be generated and contributed by a variety of sources, including businesses, government agencies, and individual users. This can make it difficult to ensure that the data is complete and covers all relevant points of interest. Verifying POI data requires checking the data against multiple sources and comparing it to other data sets to ensure that it is comprehensive.
  • Dealing with conflicting or inconsistent data: POI data can sometimes contain conflicting or inconsistent information, such as multiple names or addresses for the same location. Verifying POI data requires resolving these conflicts and inconsistencies to ensure that the data is accurate and reliable.
  • Protecting the privacy and security of the data: POI data can include sensitive and personal information, such as the names and addresses of individuals and businesses. Verifying POI data requires taking steps to protect the privacy and security of this information, such as anonymizing or encrypting the data.

Overall, verifying POI data is a complex and challenging task that requires careful attention to detail, a thorough understanding of the data, and the use of appropriate tools and techniques.

POI data has a wide range of uses and applications, including:

  1. Navigation and routing applications, such as maps and GPS systems, use POI data to help users find their way to a specific location.
  2. Location-based search engines and directories, such as Yelp and Google Maps, use POI data to help users find businesses, services, and other points of interest in their area.
  3. Real estate websites and applications use POI data to help users find properties and homes for sale or rent near specific points of interest, such as schools, parks, and public transit.
  4. Social media platforms, such as Facebook and Instagram, use POI data to help users tag and share their location with others.
  5. Retail businesses use POI data to identify potential customer locations and target marketing and advertising efforts.
  6. Emergency response and public safety organizations use POI data to identify the locations of hospitals, fire stations, and other critical facilities.
  7. Tourist information and travel booking websites use POI data to help users find and plan trips to popular destinations and attractions.
  8. Insurance companies use POI data to assess risk and determine insurance premiums for properties located near potential hazards, such as flood zones or wildfire areas.
  9. Event and concert ticketing websites use POI data to help users find and purchase tickets for events taking place at specific venues.
  10. Food delivery and takeout services use POI data to identify potential customer locations and match them with nearby restaurants.
  11. Public transit agencies use POI data to identify and map the locations of bus and train stops, subway stations, and other transit hubs.
  12. Environmental organizations use POI data to identify and track the locations of natural resources, protected areas, and other important ecological sites.
  13. Government agencies use POI data to identify the locations of polling stations, schools, and other public facilities for election and census purposes.
  14. Telecommunications companies use POI data to identify the locations of cell towers and other infrastructure for network planning and optimization.
  15. Market research firms use POI data to identify potential locations for conducting surveys and focus groups.
  16. Museums and cultural institutions use POI data to identify and map the locations of historical landmarks and other points of interest for visitors.
  17. Car rental companies use POI data to identify the locations of their rental offices and fleet vehicles.
  18. Nonprofit organizations use POI data to identify potential locations for fundraising events, volunteer opportunities, and other activities.
  19. Advertising and marketing companies use POI data to target ads and promotions to users based on their location.
  20. Agricultural companies use POI data to identify and map the locations of farms, fields, and other agricultural land.
  21. Ride-sharing and car-sharing services use POI data to identify potential pickup and drop-off locations for their users.
  22. Health care providers use POI data to identify the locations of hospitals, clinics, and other health care facilities for referral and care coordination purposes.
  23. Energy companies use POI data to identify the locations of power plants, transmission lines, and other energy infrastructure.
  24. Online shopping and e-commerce websites use POI data to help users find and compare products and prices at nearby stores.
  25. Movie theaters and entertainment venues use POI data to help users find and purchase tickets for movies and shows.
  26. Outdoor recreation and adventure companies use POI data to identify and map the locations of hiking trails, campsites, and other outdoor destinations.
  27. Sports teams and leagues use POI data to identify and map the locations of stadiums, arenas, and other sports venues

This is by no mean a complete list of the possible uses cases and applications of Points Of Interest ( POI ) data

More Information about how POI data has been used to research the spread of COVID-19
About the Author
I'm Daniel O'Donohue, the voice and creator behind The MapScaping Podcast ( A podcast for the geospatial community ). With a professional background as a geospatial specialist, I've spent years harnessing the power of spatial to unravel the complexities of our world, one layer at a time.