Organised Editing/Activities/CCCHH-surveillance
CCC Hamburg surveillance mapping
Rationale
The CCC Hamburg (Chaos Computer Club Hamburg or short CCCHH) is a local computer club in Hamburg, Germany. A working group within the CCCHH is dealing with surveillance. They approached the local OSM community in Hamburg with the idea to contribute data to OSM that deals with surveillance, mainly surveillance cameras.
The motivation is a better data base for the Surveillance under Surveillance project.
Contact
The main contact person for this activity is 
hauke-stieler (on osm, edits, contrib, heatmap, chngset com.).
Community Consultation
The local community was contacted, we (OSM Hamburg) had meetings with the CCCHH to discuss and plan the efforts and public announcements for the mapping activity (mailing list and telegram) went out.
Hashtag
We use #ccchh-surveillance (see here for the latest changesets of this activity).
Timeframe
So far the activity is planned for summer 2024 (one meeting to collect data took place on 23th of July).
Tools and Data Sources
We collect data on the ground by surveying the areas. We do so with apps (OsmAnd and GeoNotes were mainly used) and take photos of surveillance cameras and use iD or JOSM to add the data to OSM. Photos of surveillance cameras will be uploaded and tagged on the POIs in OSM but where the photos are uploaded is yet to be determined.
SimpleTaskManager is used to keep track of the regions in Hamburg and to organize the efforts.
Participants
There are two groups of participants: People collecting data on-site and people adding the data to OSM.
Participants collecting data:
- hauke-stieler (on osm, edits, contrib, heatmap, chngset com.)
- Winston S (on osm, edits, contrib, heatmap, chngset com.)
- seranne (on osm, edits, contrib, heatmap, chngset com.)
- soupsoup (on osm, edits, contrib, heatmap, chngset com.)
- BadCam (on osm, edits, contrib, heatmap, chngset com.)
There might be more volunteers participating and collecting data, maybe without OSM user account.
Participants contributing to OSM:
- hauke-stieler (on osm, edits, contrib, heatmap, chngset com.)
- Winston S (on osm, edits, contrib, heatmap, chngset com.)
Measuring our Success
We don't have a clear goal but to simply add all public surveillance cameras we can find. See below for the results/statistics of this activity.
Training/Instructions
The user hauke-stieler (on osm, edits, contrib, heatmap, chngset com.) is training participants not familiar with OSM. Adding the data also happens together with people, who are familiar with OSM.
Used tags
- man_made=surveillance
- surveillance=*
- surveillance:type=camera
- surveillance:zone=*
- camera:mount=*
- camera:type=*
- camera:angle=* - A value of 0 means horizontal, 90 means vertically down
- camera:direction=* - A value of 0 means the camera faces perfectly north, 90 east, 180 south, 270 west.
- height=* - Height of the camera above ground.
Optional but useful tags (especially indoors):
- level=* - The building storey where the camera is (in German "Stockwerk").
- layer=* - The technical rendering level (see surrounding data for the correct value).
When available:
- operator=*
- ref=* - Any number on the camera to identify it.
- image=* - The full URL to the image of the camera.
Template
camera:mount=wall camera:type=dome camera:angle=10 camera:direction=10 check_date=2024-08-19 height=4 level=0 layer=0 man_made=surveillance operator=HVV surveillance:type=camera surveillance:zone=building surveillance=public
Post-Event Clean Up
There will probably be no clean-up event, since no clean-up will be needed. However, hauke-stieler (on osm, edits, contrib, heatmap, chngset com.) (and maybe others) will probably review the changes at least on a sample basis.
Results
As a result, new nodes of surveillance cameras will be added and wrong/outdated nodes will be updated. Ways or relations will not be added but maybe updated.
The following statistics will document the results according to this query:
| Date | Number of nodes | Node count change since 2024-07-22 |
|---|---|---|
| 2024-07-22 13:00 | 844 | 0 |
| 2024-08-19 20:35 | 858 | 14 |
| 2024-08-20 21:25 | 879 | 35 |
| 2024-08-21 19:40 | 905 | 61 |
| 2024-08-22 21:25 | 998 | 154 |
| 2024-08-25 14:30 | 1011 | 167 |
| 2024-08-30 11:30 | 1022 | 178 |
| 2024-09-04 17:30 | 1029 | 185 |
| 2024-09-07 10:50 | 1044 | 200 |
| 2024-09-10 20:30 | 1062 | 218 |
| 2024-09-13 10:40 | 1073 | 229 |
| 2024-09-18 20:30 | 1075 | 231 |
| 2024-09-25 23:00 | 1073 | 229 |
| 2024-10-08 20:50 | 1079 | 235 |