Allow working with trolleybus routes

[HellMapGoesCoding]

I noticed when trying to load a trolleybus route that it returned that it wasn't a valid bus route. I am not certain, but I think there should be no difference between bus and trolleybus route processing - they do exactly the same thing. I should mention that I realize this is on the planned list, but this seems like a very low-hanging fruit, considering it's (probably) just another route value and can otherwise be treated the same.

[Zaczero]

Please provide me an example route and I'll see what I can do :-)

[HellMapGoesCoding]

Sure thing! Here are the two routes I was playing with yesterday: https://www.openstreetmap.org/relation/16001026 and https://www.openstreetmap.org/relation/16001027 . I had them set as route=bus to load them. I've changed them now back to route=trolleybus.

Thinking some more, perhaps I spoke too soon about the only change. The stop/platform itself would get a trolleybus=yes instead of bus=yes. I am not sure though if Relatify is actually adding bus=yes to stops to begin with? And whether it should consider existing bus/trolleybus values (I think you ignore bus=no, but otherwise any stop will do?).

[Dimitar5555]

Here is also another set of them https://www.openstreetmap.org/relation/3493882.

@Zaczero Is there any particular difficulty with adding support for trolleybus routes? Assuming the problem is how to select the streets - just look for trolley_wire or trolleybus. trolleybus=yes seems to be used on road segments where trolleybuses don't run under overhead wires and use batteries (or diesel generator).

[Zaczero]

I simply haven't focused on this specific issue yet.