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Re: [sumo-user] connecting bike lane + generic lane to a single lane yields a warning, despite zipper junction
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Thanks for clarification, Jakob,
At the time I inserted a zipper junction just at the start of the edge without bicycle lane - in order to (believe to) get rid of the warning, I already concluded that something is overseen in the behavioural rules: Two normal lanes merge (in a zipper) to one lane without warning, while merging a normal lane and a bicycle lane results in a warning.
Rob
Am 02.02.2022, 08:01 Uhr, schrieb Jakob Erdmann <namdre.sumo@xxxxxxxxx>:
In a way, that warning message is no longer needed.
It dates to a time where multiple connections to the same lane were unsafe in SUMO and could cause collisions.
This has long been fixed and now multiple connections to the same lane are either resolved with zipper logic or (for any other type of junction) with right-of-way rules that give priority to one of the connections.
In the case you describe, the cars moving from north to west would have yielded to the bicycles that are coming from the north.
With your change, they are doing zipper merge. Which one of those two behaviors is more realistic probably varies between localities.
Originally (from OSM wizard) the small zipper junction that resulted from a manual splitting of the upper edge was not present. The bike lane from the north got into the residential lane, together with the standard lane (see screenshot).
I'm wondering that the warning after insertion of a zipper junction is only "relocated just left of the zipper junction.
Since I'm doing clean-up of the network prior to doing other steps, this problem popped up yet..._______________________________________________
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