DonK

Adding <time> tag with EGPS?

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I'm trying to upload a .gpx file of track segments to Open Street Map. I'm getting the error:

Found no good GPX points in the input data. At least 75% of the trackpoints lacked a <time> tag.

Looking at the file text I see the <time> </time> tag is empty. Is there a quick way to use EGPS to fill in the time tag with a set of "dummy" values that OSM will find acceptable?

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ExpertGPS data will have a <time> tag if your data was recorded with a GPS. It won't have a <time> tag if you drew something on the map or imported data that didn't originate with GPS data.

OpenStreetMap doesn't want you uploading hand-drawn GPX files, or imported data, which is why they specifically reject data without a timestamp. I believe this is to help ensure that anything you upload was created by you, and that you're not violating somebody's copyright by tracing their map or bulk-uploading their vector data.

I know they bulk-import data from MassGIS and other organizations, so perhaps if you talk to them about your project they can set you up with some sort of bypass.

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Thanks, Dan. The gpx file I'm working with was produced by the Town of Arlington, MA and shows trails in one of the Town's parks. I was asked (not by the Town) to upload this file to OSM to correct the trail map which is currently there which contains several errors.

Perhaps I can check with the Town.

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The "OSM approved" way to do this would be to go out and hike those trails with your GPS, so that the data you upload has been "ground truthed". I have to say I agree with OSM on this policy - the traces in OSM should reflect what exists on the ground, not what someone claims is the "official" trail network. If you haven't heard, there's a new effort by MassWildlife to let most trails on their wildlife management areas fade into obscurity, and they are actively trying to erase them from online maps.

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I understand what you're saying and I agree with your agreement with the OSM policy. Frankly I was surprised when I first realized that I could relatively easily modify the OSM maps.

I can well imagine official entities like state and local governments not wanting to take responsibility for trails drawn on their maps. Even if the trail maps were originally accurate, conditions change over time. I could see some hikers running into trouble and blaming the governmental entity that produced the map.

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