Re: [sumo-user] Error: Zipper junctions with more than two conflicting lanes are not supported

[Menno van der Woude]

Hello Jakob,

1) steps as follows (NETEDIT 1.2.0)
- open network
- open additionals
- save additions (dialog will appear, which seems superfluous, since I 
just opened a specific file?)

- switch to TAZ mode with z
- select a TAZ
- disable the "keep" checkbox
- change a value in either the Source or Sink textboxes
- hit the Save changes button
- check the menu item
2) thanks!
3) this is not actually a zipper junction, but a junction belonging to 
multiple other junctions that form an intersection (there is a single 
(externally controlled) traffic light): see below, the one on the left 
without traffic light lines is the current zipper one
I set the type to zipper cause cars arriving on the edge the is selected 
in the image (blue) would only use the rightmost lane. Maybe a better 
solution then is to include that junction in the complete intersection, 
that is, control is as well with the same traffic light?


Thanks again,
Greets,
Menno

On 15-5-2019 21:02, Jakob Erdmann wrote:

Hello,
1) I could not replicated the disabled menu item. Can you give exact 
steps for this?
2) For the ordering-related error, see 
https://github.com/eclipse/sumo/issues/5640
3) Zipper junctions only support lane-drop type junctions at the 
moment. Real intersections with zippering are not supported at the 
moment. To be more precise, zipper connections that cross other 
connections before merging into the target lane are not supported.
Since the check for this is only done when a vehicle encounters an 
unsupported intersection type, it may take a while for this error to 
come up in your simulation.


Does the layout in your example reflect a real intersection where 
multi-lane roads merge without prioritization ? I was not aware that 
such things exist.


best regards,
Jakob



Am Mi., 15. Mai 2019 um 10:17 Uhr schrieb Menno van der Woude 
mailto:me...@codingconnected.eu>>:


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:
    
    
    
    
    
    
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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Re: [sumo-user] Error: Zipper junctions with more than two conflicting lanes are not supported

[Jakob Erdmann]

Hello,
1) I could not replicated the disabled menu item. Can you give exact steps
for this?
2) For the ordering-related error, see
https://github.com/eclipse/sumo/issues/5640
3) Zipper junctions only support lane-drop type junctions at the moment.
Real intersections with zippering are not supported at the moment. To be
more precise, zipper connections that cross other connections before
merging into the target lane are not supported.
Since the check for this is only done when a vehicle encounters an
unsupported intersection type, it may take a while for this error to come
up in your simulation.

Does the layout in your example reflect a real intersection where
multi-lane roads merge without prioritization ? I was not aware that such
things exist.

best regards,
Jakob



Am Mi., 15. Mai 2019 um 10:17 Uhr schrieb Menno van der Woude <
me...@codingconnected.eu>:

> 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:
>
>
>
>
>
>
>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
> ___
> sumo-user mailing list
> sumo-user@eclipse.org
> To change your delivery options, retrieve your password, or unsubscribe
> from this list, visit
> https://www.eclipse.org/mailman/listinfo/sumo-user
>
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[sumo-user] Error: Zipper junctions with more than two conflicting lanes are not supported

[Menno van der Woude]

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:
    
    
    
    
    
    
   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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