[sumo-user] Randomness in speedFactor distribution

[Iñaki Cejudo Fresnadillo <icejudo@xxxxxxxxxxxxx>]

Hi, 

I am generating a traffic demand with duarouter from a flow definition file with a vTypeDistribution definition as well. Within this vTypeDistribution I have a normc speedFactor distribution.

I am expecting a random speedFactor for each vehicle, but if i repeat the simulation the randomly assigned speedFactor for each vehicle keeps repeating. 

For example, vehicle1 always has speedFactor = 0.94, vehicle2 always has speedFactor = 1.02... and so on. So I am not getting real randomness among simulations.

The command I am using for traffic demand generation is the following:

/.local/lib/python3.6/site-packages/sumo/bin/duarouter -n <net_file> --route-files flow.xml -a vTypeDistr_file.add.xml -o <output_file>  --randomize-flows --ignore-errors -v --repair --random

Is it that I am doing something wrong? Thanks.

Regards,

Iñaki

--

Iñaki Cejudo Fresnadillo
Research Assistant | Ayudante de Investigación

icejudo@xxxxxxxxxxxxx
+[34] 943 30 92 30

Intelligent Transport Systems and Engineering | Sistemas de Transporte Inteligentes e Ingeniería

  

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