Hi Soheil,
by default vehicles do not enter an intersection if they expect to stop
inside. This behaviour can be configured in the junction model (see
parameter jmIgnoreKeepClearTime
<https://sumo.dlr.de/docs/Definition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html#junction_model_parameters>
).
Please note that junction model parameters are linked to the vehicle but
not to the junction: They are applied to all junctions. The only workaround
to change the behaviour locally is changing the vehicle types locally using
calibrator items:
<https://sumo.dlr.de/docs/Simulation/Calibrator.html#calibrating_vehicle_types>
. So you would need a calibrator at every entrance/exit edge of the area
you want locally different driving behaviour.
Best regards
Mirko
-----Original-Nachricht-----
Betreff: Re: [sumo-user] fixing bugs in a jammed simulation
Datum: 2023-09-29T22:58:34+0200
Von: "Soheil Keshavarz" <[email protected]>
An: "Mirko Barthauer" <[email protected]>
Thanks a lot, Mirko for your reply.
One more question. In the screenshot below you can see that in jam
condition and in little junctions with alleys(roads with priority=2),
vehicles do not move further and there is a gap in front of the alleys. How
can I prevent this and make vehicles neglect these minor junctions, in
order to better utilize main streets?
[image.png] [image.png]
Regards,
Soheil
On Mon, Sep 25, 2023 at 4:10 AM Mirko Barthauer <[email protected]
<mailto:[email protected]> > wrote:
Hi Soheil, you have set a quite high value for lcStrategic, meaning
vehicles will care much about reaching the target turning lane early.
Depending on which routes your vehicles take and how close junctions are
next to each other, artefacts
ZjQcmQRYFpfptBannerStart
This Message Is From an Untrusted Sender
You have not previously corresponded with this sender.
See<https://itconnect.uw.edu/email-tags> for additional information.
Please contact the UW-IT Service Center, [email protected]
<mailto:[email protected]> 206.221.5000, for assistance.
ZjQcmQRYFpfptBannerEnd
Hi Soheil,
you have set a quite high value for lcStrategic, meaning vehicles will
care much about reaching the target turning lane early. Depending on
which routes your vehicles take and how close junctions are next to each
other, artefacts like in your screenshots may happen because maybe all
vehicles turn right/left at some point... Then there may be other isues
like how connections are modeled which is impossible to tell without the
scenario.
Regarding the first question about od2trips, I don't get the question. If
you have TAZ containing multiple edges each with a probability > 0 to be
chosen, then trips will not start / end necessarily on the same edge.
Best regards
Mirko
-----Original-Nachricht-----
Betreff: [sumo-user] fixing bugs in a jammed simulation
Datum: 2023-09-23T02:04:12+0200
Von: "Soheil Keshavarz via sumo-user" <[email protected]
<mailto:[email protected]> >
An: "[email protected] <mailto:[email protected]> " <
[email protected] <mailto:[email protected]> >
Hello all,
I was hoping to get some help from you regarding different settings in my
simulation of downtown Seattle, in which some links get highly jammed and
many vehicles teleport.
1- My demand file has trips in the format below:
<trip id="1" depart="18008.0" fromTaz="5000" toTaz="5003"
type="passenger" departLane="free" departSpeed="max"/>
Since od2trip command assigns departing and arriving links to each id, I
did not use it. However, like the 'different-source-sink' option in
od2trip, I would like to make sure that trips with same origin and
destination TAZs are not only in one link.
2- There are some unusual behaviors in my simulation. I would appreciate
any advise to correct them.
for example, a) in the bottom link, vehicles are not going forward in the
middle lane, and vehicles that want to turn left, ONLY turn to most left
lane of the adjacent link.
[image.png]
and b) vehicles in the south use a hight congested road with lower
priority to reach the north, instead of using the link with higher
priority and more lanes. Shouldn't higher priority mean a higher
probability of being used in routing?
[image.png]
By the way, below are some hyperparameters of my sumocfg file and
defintion of passenger vehicles in my simulation:
[image.png]
<vType id="passenger" vClass="passenger" accel="3.2" color="yellow"
decel="3.5" length="4" maxSpeed="200" lcStrategic="2000" lcSpeedGain="5"
lcCooperative="1" lcSpeedGainLookahead="5" minGap="1.5" cc1="0.9" cc2="4"
cc3="-8" cc4="-0.1" cc5="0.1" cc6="11.44" cc7="0.25" cc8="3.5"
cc9="1.5"/>
Thank you in advance for your comments.
--
SOHEIL KESHAVARZ (he/him)
Graduate Student | Research Assistant at iUTS Lab
<https://depts.washington.edu/iuts/wordpress/>
[email protected] <mailto:[email protected]> / <http://washington.edu/>
_______________________________________________
sumo-user mailing list
[email protected]
To unsubscribe from this list, visit
https://www.eclipse.org/mailman/listinfo/sumo-user
