[talk-ch] import of parking spaces in the city of Zürich
mail at dbrgn.ch
Sun Jun 26 17:31:54 CEST 2022
> 2. The parking spaces are marked as points. I can see that parking spaces can be added as points and as areas. Personally I would prefer areas. Do we have any preference here? I think the map could suffer a lot if we suddenly have that many points in the map.
I would prefer areas as well.
> 1. What happens to continous parking spaces along the street? Again, I think it would be better to have them as areas. But in this example, there is an outgoing path in between them.
I would map all contiguous parking lots as one area. Example:
Here you can see three parking zones, I would map them as three separate areas.
> 1. Zürich has the concept of blaue Zone. Locals can park there with a residence parking card for an unlimited time. The card is bound to the zip code of the home address. So as a person living in 8055, I can park in all blaue Zone parking spaces in 8055. All blaueZone parking spaces in 8055 are marked as 8055 with a street sign. I am not aware of any edge cases. Therefore I really would like to add some label to mark these as blaueZone:8055 or similar. This should be easily possible using some zip code map.
Could "ref" be used? https://wiki.openstreetmap.org/wiki/Key:ref At the paid parking areas, I used the code written on the parking meter (which is also entered into apps like ParkingPay). Since the blue zones don't have such a code, the ZIP-Code could be used instead.
> 2. Most/(all?) blaue Zone parking spaces are outdoor, therefore I would prefer to start with them.
These can be cross-checked on satellite imagery, so that's a good ida.
> 8. Maybe, step c should provide a standardized rectangle area instead of a point. For example 2x4 Meter. Then I could rotate the parking space in the client and maybe connect it with endpoints from other parking spaces.
Are the surface areas standardized? If not, I would use satellite imagery as reference.
> 1. Delete the current data and replace it? I think it would be sad if I remove areas and replace them with points.
Current data should not be deleted and re-created since you'll lose history.
> 5. I discovered JOSM. Do you think it is the "right" client to do this?
JOSM is a great client, once you learn to use it. There are a lot of useful plugins. (I often use the "buildings_tools" Plugin that is used for drawing rectangles with the "b" key, and then delete the "building=yes" tag from the created rectangular area.)
Regarding the import itself, I already commented on that in my previous e-mail. However, I'm no authority here, so let's wait for replies from the more seasoned community members first :)
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