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Re: [sumo-user] Issues with emergency braking and action-step-length
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Hello Jakob, community,
I rerun my simulation with SUMO 1.1.0 (official zip version) and I still have all the emergency
braking issues. I used emergencydecel.warning-threshold 1.1 and they do disappear, but I would like
to know if there is something wrong with my vehicles behavior.
Additionally, what is the proper way to use action-step-length? I thought of having
action-step-length of 1s and step-length of .25s but I'm having an incredible number of collisions.
Is it possible that it's due to https://github.com/eclipse/sumo/issues/2581 given that I'm using
the sublane model? Am I simply using it wrong? Are there some guidelines in order to proper
configure these parameters?
I just would like to be sure that my mobility is behaving in a reasonable way and I don't have
misconfigured parameters.
Attached you can find:
├── [4.6K] basic.vType.xml
├── [4.0K] action-step-length --> plenty of collisions everywhere
│ ├── [ 30M] most.sim.log
│ └── [2.5K] most.sumocfg
├── [4.0K] no-action-step-length --> plenty of emergency braking
│ ├── [2.3M] most.sim.log
│ └── [2.5K] most.sumocfg
└── [4.0K] warning-threshold_1.1 --> emergency braking disappears
├── [642K] most.sim.log
└── [2.6K] most.sumocfg
All the Best,
Lara
On Thu, 22 Nov 2018 13:18:37 +0100
Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
> Yes and no.
> The warnings are new but they only warn you about stuff that were always
> happening since 1.0.0 (from that version onwards, vehicle are allowed to
> perform emergency deceleration).
> Some of those decelerations are due to bugs (discovered since introducing
> the warning).
> If fixed some of the bugs this week so just upgrade to the very latest
> version.
>
> I think we'll get rid of most of the warnings by the time 1.1 is released
> in december.
> You can supress the warning by setting option
> --emergencydecel.warning-threshold 1.1
>
> regards,
> Jakob
>
> btw: your sumo version specifier seems wrong because the warning was
> introduced 7 days ago but the commit hash is from 24 days ago.
>
> Am Do., 22. Nov. 2018 um 13:07 Uhr schrieb Lara CODECA <
> lara.codeca@xxxxxxxxxx>:
>
> > Dear all,
> >
> > I'm using Debian Unstable and Eclipse SUMO Version v1_0_1+0470-da7d0832e7
> > (Build features:
> > Linux-4.18.0-2-amd64 x86_64 GNU 8.2.0 Release Proj GUI GDAL FFmpeg OSG
> > GL2PS SWIG).
> >
> > I'm running my usual simulation scenario
> > https://github.com/lcodeca/MoSTScenario but from SUMO
> > Version 5345f89a38 (the last time I tested it) and v1_0_1+0470-da7d0832e7
> > something has changed,
> > because I have a very long list of
> >
> > Warning: Vehicle ... performs emergency braking with decel=-9.00
> > wished=4.50 severity=1.00, time=...
> > See attachment for the simulation log.
> > I suppose I need to change my usual simulation parameters, but I don't
> > know where to start.
> > Can I have some directions?
> >
> > All the Best,
> > Lara
> >
> > --
> > Lara CODECA
> > Postdoc
> > Tel : 04.93.00.81.51
> >
> > EURECOM
> > Campus SophiaTech
> > http://www.eurecom.fr/
> > _______________________________________________
> > sumo-user mailing list
> > sumo-user@xxxxxxxxxxx
> > To change your delivery options, retrieve your password, or unsubscribe
> > from this list, visit
> > https://www.eclipse.org/mailman/listinfo/sumo-user
> >
--
Lara CODECA
Postdoc
Tel : 04.93.00.81.51
EURECOM
Campus SophiaTech
http://www.eurecom.fr/
Attachment:
SUMO110_MoST_Emergency_Decel.zip
Description: Zip archive