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Re: [sumo-user] Question about randomTrips
Hello Jakob,
 
thanks for your fast response.
  1. So the arrival rate and the value "arrived" from the summary doesn't mean the same? I thought it's the same thing.
  2. I thought the value "arrived" can be controlled by the option --binomial. So the number of arrived vehicle (value from summary) over time is influenced by when and how many vehicles are departed. What else has an influence? The length of the trips?
  3. What is the default for the length? Is it also randomized using a distribution?
 
 
Gesendet: Donnerstag, 25. Mai 2023 um 12:42 Uhr
Von: "Jakob Erdmann" <namdre.sumo@xxxxxxxxx>
An: "Sumo project User discussions" <sumo-user@xxxxxxxxxxx>
Betreff: Re: [sumo-user] Question about randomTrips
1. some people use the term "arrival rate" to denote "arrival in the scenario" (i.e. thinking of customer arrival rate) and the section title was chosen to help these people find what they are looking for. 
2. by default the number of vehicles departing in the same second is tied to the --period option (i.e exactly one vehicle each second for period = 1).  With --binomial, the number of departures per second is randomized.
 
Am Do., 25. Mai 2023 um 11:46 Uhr schrieb Florian Schnepf <florian.schnepf97@xxxxxx>:
Hello everyone,
 
I have two questions about this part https://sumo.dlr.de/docs/Tools/Trip.html#traffic_volume_arrival_rate of randomTrips.py.
 
 
  • I don't understand why arrival rate and insertion rate is the same.
 
  • The second thing is the option --binomial. Without the option, the arrival rate already looks like a binomial distribution. I cannot see the influence of the option with different values in the plots. 
Can someone give me a tip?
What does the option do in the background? The insertion rate stays the same, so will the trips be longer with this option?
 
 
Thanks in advance
 
Regards,
Florian
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