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Today's Topics:
1. Re: Documentation is wrong (I think) about CACC parameter
names (Michael Behrisch)
2. cannot generate right traffic flow output through
flowrouter.py (kathy)
----------------------------------------------------------------------
Message: 1
Date: Wed, 17 Apr 2019 13:37:38 +0200
From: Michael Behrisch <oss@xxxxxxxxxxx>
To: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Subject: Re: [sumo-user] Documentation is wrong (I think) about CACC
parameter names
Message-ID: <a76c5630626c3e5b55d20940f54a8c7a@xxxxxxxxxxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed
Hi Fredrik,
are you referring to this document:
https://sumo.dlr.de/wiki/Definition_of_Vehicles,_Vehicle_Types,_and_Routes#Car-Following_Models?
As far as I can see it is correct.
Best regards,
Michael
Am 2019-04-16 12:39, schrieb Fredrik Nilsson:
> Hi,
>
> I just wanted to say that I think I found an error in the
> documentation. The parameter names for CACC don't work but if I input
> the names for the ACC parameters instead they work for CACC.
>
> BR,
> Fredrik
>
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------------------------------
Message: 2
Date: Wed, 17 Apr 2019 06:08:01 -0700 (MST)
From: kathy <k.li@xxxxxxxx>
To: sumo-user@xxxxxxxxxxx
Subject: [sumo-user] cannot generate right traffic flow output through
flowrouter.py
Message-ID: <1555506481322-0.post@xxxxxxxxxxxxx>
Content-Type: text/plain; charset=us-ascii
Dear SUMO-community,
I am working on generating a simulation with vehicle flow data in sumo.The
area is a region of a city, and the flow data of main streets in 24h are
given. The road network of this area I have exported from Openstreetmap and
converted to SUMO net file. From the observation data I defined about one
hundred detectors and their flows in detectors.xml and flows.txt, it
includes 7 source detectors and 8 sink detectors. The running of
flowrouter.py has no problem, and I can also run the simulation in SUMO-GUI,
but it seems that the traffic flow is not right, I run the flowFromRoutes.py
to compare the output flow with the input flow, it shows :
det_003;176.0;176.0;0.0
det_003_opp;170.0;170.0;0.0
det_004;36.0;36.0;0.0
#;avgRouteFlow;avgDetFlow;avgDev;RMSE;RMSPE;GEH;GEH%
#;127.33333333333333;127.33333333333333;0.0;0.0;0.0;0.0;100.0
and this is the result of running flowrouter.py:
Reading net
4583 edges read
Reading detectors
Loaded 7 sources and 8 sinks from detector file. Added 0 sources and 0 sinks
from the network
Reading flows
Calculating routes
7 sources, 7 unlimited
8 sinks, 7 unlimited
Writing 248 vehicles from 3 sources between time 0 and 3600
unused sources: -161678034#0 27920078#0 32923867#0 64464430
I tried to delete the type definition in detectors.xml and use
--revalidate-detectors, the result changed a little bit, but still like
this, very few routes and flows are generted out, and the output flow is too
much different as the input. I uploaded the files and one diagram for the
detectors. Could anyone help me to get through this please? Many thanksin
advance!
innenstadt_ignore_forum.7z
<http://sumo-user-mailing-list.90755.n8.nabble.com/file/t159/innenstadt_ignore_forum.7z>
best regards,
Kathy
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End of sumo-user Digest, Vol 22, Issue 51
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