CODEWITHSUNDEEP
omnet++veins
Andreas Prs
Andreas Prs

Reputation: 51

OMNeT++ & Veins steady state vehicle density

I want to keep a constant number of cars in my (long) simulation (OMNeT+Veins). I do not care about mobility that much so i could probably use the Veins in-built function *.manager.numVehicles = 100. The thing is that if i do not specify any(enough) vehicle flows (from SUMO) my simulation terminates instantly (because of no events). So i create some flows (that exit the simulation sooner) and Veins fills up for the cars as they dissappear.

Is there a more elegant way to do this? I'd prefer to just use the numVehicles function since it's easier and the cars move minimally so they remain in the simulation for long.

I need steady-state vehicular density (number of vehicles fixed - even if old ones leave and new ones enter to replace them at the same instant).

Thanks, Andreas

Upvotes: 5

Views: 379

Answers (2)

Pasha M.
Pasha M.

Reputation: 340

https://stackoverflow.com/a/71071341/7215379 has a solution. It actually is meant to keep the number of vehicles in simulation constant. You can look into the possibility of reusing it.

Upvotes: 0

Christoph Sommer
Christoph Sommer

Reputation: 6943

The autoShutdown parameter can be set to false to instruct the coupling interface to keep going even though there are no more cars in the simulation. See https://github.com/sommer/veins/blob/veins-4.5/src/veins/modules/mobility/traci/TraCIScenarioManagerLaunchd.ned#L55

Upvotes: 0

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