[sumo-user] Deadlocks with sublane model

[joerg <schweizer.joerg@xxxxxxxxx>]

Hi all,

Using the sublane model (1m sublane width) I'm observing at some 
junctions that vehicles get blocked right in front of junctions. There 
seems a common pattern:

- there are 2 or 3 vehicles standing in parallel on the same lane 
entering a junctions (typically 1 car+1 motorcycle or 3 motorcycles side 
by side). More than 3 vehicles in parallel do not fit due to the limited 
total edge width.

- vehicles seem to block each other, even though they are heading for 
either  the same edge, or to different diverging edges; target edges are 
free of traffic

- Something has made those vehicles stop, either a previous downstream 
congestion or a traffic light signal; but after the congestion went away 
or green light, those vehicles remain blocked and do not move until 
teleport.

- in all cases there is some divergence, either from 1 to 2 edges or 
from 1 to 2 lanes.

The phenomenon generally happens in heavily congested networks. I have 
see this kind of behavior already in the past, currently I am using 
version 1.12

Is there any trick to resolve those conflicts or has this problem been 
addressed in the latest development?

Thanks for any hint.

Best wishes,

Joerg