Add motorway_contruction layer

[zbycz]

For preview URL see zbycz/osmapp#61
Its live – just check eg. https://osmapp.org/#16.30/49.6688/18.3240

I think this could be designed more nicely, but i guess it works as is.

[frodrigo]

There is already a lot of transportation layer. Adding more not seam to me as good move.

Maybe done using a condition inside existing one.

[zbycz]

Hi @frodrigo, can you please explain what condition do you mean? As this uses completely different source_layer we have to add new display layer I guess. //cc @TomPohys ?

[frodrigo]

The only source here is openmaptiles.

[frodrigo]

Hi @frodrigo, can you please explain what condition do you mean? As this uses completely different source_layer we have to add new display layer I guess. //cc @TomPohys ?

You source layer here is just transportation.

I talk about https://maplibre.org/maplibre-gl-js-docs/style-spec/expressions/

[petraduriancikova]

Hi Pavel, as @frodrigo pointed out, there is an incorrect data source, it should be indeed openmaptiles. I think it's a good idea to add construction roads, but instead of just one class motorway_construction, IMHO it would be beneficial to add also trunk_construction, primary, secondary, tertiary etc. Line-color and line-width styling of these can be done based on match expressions. Adding one additional layer like this to the transportation is IMHO ok. If it's added to the existing layers, the styling will be quite complex. I think the construction roads should also use a dashed line instead of a solid one.
cc @TomPohys

[zbycz]

@petraduriancikova thanks for the clarification. I changed the source layer. Feel free to merge this, we can iterate on different road classes later.