Re: [sumo-user] Insert Randomness on route file

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Hello,

1) Thank for reporting this issue which is now being tracked at https://github.com/eclipse/sumo/issues/4076

The warning, which is invalid, was intended as a fail-safe when loading unsorted route files incrementally.

As a work-around you can load your route file all at once by adding it to the list of additional files (this disables the check for sorted departures):

sumo --additional-files yourVehicles.rou.xml

This way, the option --random-depart-offset should work as expected

2) set --random-depart-offset, set vehicle (or flow) attribute departPos="random". Then call sumo with different values of --seed or add option --random (which uses a random seed)

See http://sumo.dlr.de/wiki/Simulation/Randomness

Another important aspect of stochastic simulations are speed distributions: http://sumo.dlr.de/wiki/Definition_of_Vehicles,_Vehicle_Types,_and_Routes#Speed_Distributions

regards,

Jakob

2018-05-15 16:24 GMT+02:00 Thanos Tasakos <thanos.tas@xxxxxxxxx>:

Hello all,

1. if u have a given rou.xml file is it possible to create many different perturbed versions of it (i want to add stochasticity at each run). One option that i came accross was to use --random-depart-offset <TIME> but when i add this tag to my sumocfg file the sumo-gui wouldnt run giving a Warning that the departures should be ordered.
   
2.  Generally given a .rou file how can i change it(different departures, different starting positions)

Kind regards,

Thanos Tasakos

 

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