Why the map data is inaccurate

Question

Why the map data is inaccurate

Tim Li (CN) 0

The address called to the Bing REST service is 33.178244, -117.331757 according to the address 2525 El Camino Real, Carlsbad, CA 92008, but the address queried according to the latitude and longitude 33.178244, -117.331757 is 2298 Marron Rd, Carlsbad, CA 92008, United States

LeelaRajeshSayana-MSFT 17,766 Reputation points Moderator

2023-08-14T20:34:49.6633333+00:00

Hi @Tim Li (CN) Greetings! Welcome to Microsoft Q&A forum. Thank you for posting this question here.

Can you share any additional context on the rest service you are referring to in your question? I appreciate it if you can let us know the steps you have followed to help us replicate the issue from our end.
IoTGirl 3,621 Reputation points Microsoft Employee Moderator

2023-08-14T22:41:33.3933333+00:00

Hi Tim,

Forward Geocode and Reverse geocode are often not an exact reverse of each other. Can you please provide the API calls, without your key, that you are using to see this issue?

Sincerely,

IoTGirl
Tim Li 0 Reputation points

2023-08-15T11:54:45.3933333+00:00

Thanks all you guys, the API calls screen shots like below:

1 answer

Your answer

LeelaRajeshSayana-MSFT 17,766 Reputation points Moderator

2023-08-14T20:34:49.6633333+00:00

Hi @Tim Li (CN) Greetings! Welcome to Microsoft Q&A forum. Thank you for posting this question here.

Can you share any additional context on the rest service you are referring to in your question? I appreciate it if you can let us know the steps you have followed to help us replicate the issue from our end.
IoTGirl 3,621 Reputation points Microsoft Employee Moderator

2023-08-14T22:41:33.3933333+00:00

Hi Tim,

Forward Geocode and Reverse geocode are often not an exact reverse of each other. Can you please provide the API calls, without your key, that you are using to see this issue?

Sincerely,

IoTGirl
Tim Li 0 Reputation points

2023-08-15T11:54:45.3933333+00:00

Thanks all you guys, the API calls screen shots like below:

Answer 1

Sounds like you are trying to compare forward and reverse geocoding calls. These will often vary with just about any mapping platform for a whole lot of possible reasons. The coordinates you have for the input address (forward geocoding) appear to be rooftop coordinates (on top of the building) which is actually a fair distance from any road. When those are past into a reverse geocoder, the reverse geocoder snaps them to the closest road segment as reverse geocoders estimate the address of a coordinate based on the street number blocks of a road. In this case there is a home (2298 Marron Rd, Carlsbad, CA 92008) that is closer to the snapped coordinate snapped and since it is closer than the mall address, this home address gets returned by the reverse geocoder as the top result. I've seen this behavior on nearly every single map platform over the past decade.

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Why the map data is inaccurate

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