Hello all,

after a while away from sumo and simulations, I have picked this up again now. Great to see the new features! Eg. being able to edit taz items within NETEDIT is really helpful.

I have noticed:

 * when changing 'source' and 'sink' values for edges belonging to a
   TAZ, after hitting "Save changed", the "Save additionals" menu item
   stay disabled. Only after for example moving a detector can those
   changes then be saved to an additionals file that had been opened
   and saved before.
 * NETEDIT sometime saves TAZ items like this:
        <taz id="P2" shape="1183.39,406.32 1188.58,398.44
   1194.54,402.09 1190.31,410.36 1183.39,406.32" color="blue">
            <tazSource weight="0.00" id="gneE120"/>
            <tazSink weight="1.00" id="gneE120"/>
            <tazSource weight="1.00" id="gneE121"/>
            <tazSink weight="0.00" id="gneE121"/>
        </taz>
   Important here is source-sink-source-sink: SUMO will be unable to
   read this and report an error. It seems odd that this is incorrect,
   because it is valid XML and the order of the items should (in my
   opinion) be irrelevant. Saving, closing, opening and saving again of
   the additionals file solves the problem: then we have
   source-source-sink-sink.

A question: given the junction in the picture below, SUMO complains after a while of simulation: "Error: Zipper junctions with more than two conflicting lanes are not supported". I wonder: why? How to solve this?

Thanks, greets, Menno

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