nammala's Diary

Monthly roundup - common errors and unexplained edits observed

Posted by nammala on 27 January 2017 in English.

Continuing from our previous diary post on inconsistent edits observed, here are the inconsistent edits observed in OpenStreetMap between 26 December 2016 - 27 January 2017 using OSMCHA.

We commented on the changesets:

Deleted main stream and added an incomplete one: changeset
Deleted existing roads and buildings: Changeset 1, 2, 3
Added unnecessary trunk roads: Changeset
Deleted buildings: Changeset 1, 2, 3
Deleted roads: Changeset 1, 2
Added unconnected footways with footway=crossing, crossing=zebra for the whole length of the road: Changeset
Added self intersecting footway that goes over a building: Changeset
Added address in name tag: Changeset
Added single large buildings for many buildings instead: Changeset

Community members commented on the following changesets:

Deleted park and bicycle way: Changeset
Deleted footways: Changeset
Added tertiary tags to residential roads: Changeset
Deleted POI’s and some buildings: Changeset
Added barrier=wall all over the street: Changeset

Reverted:

Added waterbody which doesn’t exist in the imagery: changeset
Added christmas tree saying Happy new year: changeset

screen shot 2017-01-03 at 12 40 50 pm

Added a waterbody with water=sound tag in the ocean with name as Doodoo water : changeset
Changed name of the highway: Changeset 1, 2
Added duplicates of POI’s: changeset
Added footways all over one place: changeset

screen shot 2017-01-12 at 10 12 17 am

Deleted Valid data on map: Community reverted the changeset
Deleted buildings: Reverted the Changeset
Testing Opengeofaction data in OpenStreetMap (OSM): Community reverted the changeset
Deleted roads: Reverted the changeset
Deleted existing footways, major highways and renamed highways: Changeset 1, 2, 3, 4, 5, 6, 7, 8, 9
Changed highway tag: Community reverted the changeset
Inappropriate information: Community reverted the changeset
Inappropriate temporary race track mapping: Reverted the changeset
Added a primary highway not connected to anything and has an access=private tag: Changeset
Added Fictional roads: Reverted the changeset 1, 2

POKEMON Stuff:

Added cricket and football pitch in a park: Commented on the changeset.
Fictional data by Pokemon mapper: Reverted by the community Changeset
Added number of footways in one location: changeset

screen shot 2017-01-03 at 9 39 30 am

Added Pokemon gym stations: Reverted the changeset 1, 2, 3, 4
Pokemon Go mapper. Reverted the bad stuff Changeset 1, 2, 3
Changed residential roads to footways: Reverted the changeset
Fictional footways. Reverted the changeset 1, 2, 3, 4, 5

If you are interested in validation, check out our validation guide on using OSMCha. From the past one month, we have been observing a lot of Pokemon Go mappers adding footways, cycleways, pedestrians, parks etc. Some of them are adding valuable data and while some are doing fantasy mapping. Do keep an eye on the edits happening in your neighborhood and comment on changesets which seem inconsistent to let the user know which will help them become better mappers and also lets us maintain the data quality on OpenStreetMap

Look forward to another roundup in the coming week.

Discussion

Comment from BladeTC on 27 January 2017 at 19:40

Good work, Brother!

Comment from Zverik on 28 January 2017 at 11:57

Awesome, thanks! Please add more screenshots, like a dozen for each report. These images are so beautiful :)

Comment from gileri on 28 January 2017 at 18:07

Neat !

Comment from Verdy_p on 4 February 2017 at 04:23

Reverting/deleting an newly added water pond which is clearly existing on the imagery (when your comment above and in the reverting changeset) says the opposite, is not the correct way to do.

I don’t know how you can check that remotely or which kind of imagery you used to revert these additions: the added ponds are present in SEVERAL imagery sources and they also match with terrain elevation data and surrounding water drains.