SJCR Import

This is a small manual import caves dataset of the Cave Administration of the Czech Republic. The import is currently (Dec 2019) at the planning stage.

Goal

Import all caves of the Czech Republic. The first phase - all public. Second stage - all remaining.

Schedule

Processing and import work is intended to be performed in January 2020.

Data source site: http://www.caves.cz/ Actual data provided via email communication on request.
Type of license: ODbL
Link to permission: datasets for OSM explicitly permitted (Czech only emails): https://lists.openstreetmap.org/pipermail/talk-cz/2019-August/021895.html paper copy is stored at office of OpenStreetMap Česká Republika z.s. (future local chapter)
ODbL Compliance verified: yes

Data Preparation and Tagging

The data from SJCR contains the SHP file in EPSG:5514 coordinates. You need to convert it to WGS84 first.

The one option is to:

 * delete PRJ file
 * open the SHP file in QGIS
 * choose the coordinate system EPSG:5514
 * Layer -> Export as -> choose the WGS84 during the export to SHP file

Now you can open the JOSM and import the SHP file.

One of the SHP contains entrances. This can be tagged as:

Tagging:

• natural=cave_entrance
• source=cz:SJCR

And optionally other pieces of information you can retrieve from www.caves.cz and which are suitable for natural=cave_entrance.

The outline of the cave should be mapped using: https://wiki.openstreetmap.org/wiki/Proposed_features/natural%3Dcave Note: this is open to discussion as this is a proposed feature and not approved yet.

The footway should be mapped within the outline according to the map provided on www.caves.cz. It should be mapped as:

Tagging:

• highway=footway
• layer=-5
• source=cz:SJCR

The footway, outline and entrances should be part of relation:

• name=NAME OF THE CAVE
• type=site
• source=cz:SJCR

Example of such relation https://www.openstreetmap.org/relation/10478883

Confloation

There are only few (less than five) caves mapped in Czech Republic. It seems that all of them were mapped approximately. I propose to override any conflicts and use data from this import.

QA

There is only 15 publicly accessible. And around a hundred caves in total in the Czech Republic. This can peer-reviewed and the progress can be tracked on this wiki page.

See also

• Voting of the Czech community about correct source tag: https://doodle.com/poll/56vyexnc4vhqn3y5
• The discussion: https://lists.openstreetmap.org/pipermail/talk-cz/2019-August/021896.html
• The first batch of data from SJCR: https://lists.openstreetmap.org/pipermail/talk-cz/2019-August/021897.html
• Discussion about the data set: https://lists.openstreetmap.org/pipermail/talk-cz/2019-August/021949.html