Maps updates and accuracy

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New Contributor

I know Azure Maps would be kept quite up-to-date and should be very reliable. Just wondering if anyone knows of metrics? E.g. If I'm doing a reverse geocode, are there metrics around the accuracy of the data I get back? What about for new neighborhoods, how often is the maps data updated?

4 Replies

@ericfeunekes Data that appears in the visual maps (interactive map controls, vector/raster tiles, static map service) is updated every week. The other REST services such as forward and reverse geocoding receive data updates every month.

 

On a similar topic, if you do come across a data related issue, you can report it here: https://feedback.azuremaps.com/ This site has an option to get a URL to track your reported issue until it is resolved in production.

Thanks! Any idea if there are accuracy stats on a reverse geocode? E.g. what's the chance that a county or zipcode is incorrect?

@ericfeunekes This isn't something that would typically be documented and is completely dependent on the type of data you are looking for. Entities that have well known boundaries, such as counties and states, will have very high accuracy. Where as entities that don't have well known boundaries, such as zip codes, will have a degree of error that would vary with every zip code and is basically unknown exactly (if it was known, there wouldn't be a margin of error).

 

Zip codes are points, and don't have officially defined polygon areas, and there is a lot of spaces that don't have addresses (i.e. back country of a national parks), so every data provider has to make some assumptions to create logical areas which are then used to power a reverse geocoder. To complicate things further some zip codes represent PO, boxes and several of them can be located at the same location within another zip code. There is even one zip code in the US that moves around (its a boat on the Detroit river, zip code 48222: https://en.wikipedia.org/wiki/J._W._Westcott_II)

For address level entities, typically reverse geocoders look for the nearest address point that is within 100 or 150 meters of less of the requested point.
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