Dear SUMO Staff,
I am trying to use duaiterate.py and I have a few questions regarding its
use:
1.
I am running into issues caused by long iteration times and am looking
into ways to speed up iterations. What do the following flags do (short
description) and what are their units (i.e. seconds, minutes, etc.)? Is
there an example usage of these or is there a directory that contains
more info about these flags that we can refer to?
-
--inc-start, --inc-base, --inc-max, --incrementation, --time-inc
1.
I’m trying to add weights for the duarouter section because I would like
to use my own definition of cost = travel time + tolling as a weight. I am
using the “--addweights” flag with a weight file for the additional
weights, but how do I specify the weight attribute?
1.
Using duarouter, I was able to do “--weight-attribute cost”, but is
there a flag like that for duaiterate.py?
2.
How do we tell if the iterations have reached an equilibrium? Which
output variable should we observe?
3.
When I run
python ../sumo/tools/assign/duaIterate.py -n siouxFalls.net.xml -t
siouxFalls.trips.xml -l 10 --max-convergence-deviation 1
--convergence-iterations 2 --addweights siouxFalls.weight.xml --time-inc 5"
I get the following error after running through iteration 000:
File "...\sumo\tools\assign\duaIterate.py", line 688, in main
avgTT.add(sum / count)
ZeroDivisionError: float division by zero
I am not sure why the count variable is zero – could it be that my
tripinfo_000.xml does not have a duration section? I would like to use the “
--max-convergence-deviation” flag to automatically stop iterations after
converging, but I am not sure how to fix this division by zero error.
1.
How do we store the duaiterate dump folders (e.g. 000, 001, 002, etc.) in
a separate folder such as a dump_folder folder? Currently, it is dumping
them into the current directory.
Please advise us on these questions, and let us know if you have any
clarifications. Thank you so much for your help!
Best,
James
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