Streetcomplete: In "What is the structure of this bridge" quest photos are without labels

[matkoniecz]

Happens on Android 6.0.1.

[westnordost]

Yes, there are no labels.

[westnordost]

Users should decide on the structure based on the shape they see, not based on the description plate in front of each bridge that describes how the type of bridge structure is called - because this plate is usually absent ;-)

Same with roof shapes.

[matkoniecz]

I think that it would be better with labels. In some cases photos are not self-explanatory and I would prefer to check whatever I am understanding correctly what should be selected as an answer.

I would not look for description of bridge, I would check what given bridge type means.

[matkoniecz]

Also, at least for me it would be interesting to know how bridge types are named if I am classifying them.

[westnordost]

Then perhaps we need better photos? Which bridge photo is not self-explanatory? (And why do you think that giving the name (i.e. "arch bridge", "suspension bridge", ...) would help the surveyor decide?

[rugk]

Indeed, the argument for what to select when manually mapping later is indeed valid, considering this app may be for OSM newbies and they later want to map on OSM.org or so.

Also, of course, the names are useful. Look at the German translations:

• Bogenbrücke
• Balkenbrücke
• Seilbrücke

These would e.g. even help without any pictures. So just give the user any help they need.

[westnordost]

Would you argue the same with roof shapes?

[matkoniecz]

Would you argue the same with roof shapes?

No - roofs are less varied in structure than bridges, picture are clearly indicating what is the important feature of a given case and in addition I am less interested in roof shapes.

For concrete usecases:

• floating bridge was not obvious for me before checking source code of the quest. With label it would be self-explanatory.

• I am not sure which answer, if any, applies to smaller bridges like https://www.google.com/maps/@50.0597404,19.9006872,3a,28.3y,352.53h,88.98t/data=!3m6!1e1!3m4!1szNBayaDCD2n45SSRXUp9pA!2e0!7i13312!8i6656

Probably the first one but at least I would prefer to check whatever bridge type description matches what I see.

[axre]

Roof shapes are easy to tag based on the simple pictures in the quest. You don't need the names since they don't provide any additional information to the user. The german roof shape names are not commonly known (despite the "Giebel" maybe).

The pictures of the bridges are good.

I don't see any need to add something.

Is there a picture which is confusing?

[westnordost]

I am not sure which answer, if any, applies to smaller bridges

Yeah me neither. "Beam" probably?

Look, if that is the problem, then labelling the above bridge with "bream bridge" is not going to help much. What would help however, and I already did that for arch bridges, is to add another picture of a visually different bridge such as the one you posted and let it tag the same.

I.e. both these pictures are tagged as arch bridges:

[rugk]

is to add another picture of a visually different bridge such as the one you posted and let it tag the same.

I like that UX trick, but would still argue for including the name. As it has been stated by others, the names are much more "valueable" than the roof ones. As for bridges, you generally know what is meant.

[westnordost]

So, I am not convinced that the names of the particular structures would be useful, so it is a will-not-fix. We will see what other feedback comes in over the time for the bridge structure quest.