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Re: [sumo-user] Validation of a road capacity with SUMO
  • From: François Vaudrin <francois.vaudrin.1@xxxxxxxxx>
  • Date: Fri, 27 Aug 2021 13:28:41 +0000
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  • Thread-topic: [sumo-user] Validation of a road capacity with SUMO

Danke Jakob,


I understand in the example of the circle that the speed must be reduced according to the density, but this is not done automatically by SUMO. And an intervention must be applied to reduce speed locally according to the measured density in real time by SUMO.


In other words, if I have a straight section of hihwayof several km long and I add vehicles until I reach the theoretical capacity of vehicles per lane (2000), the vehicles will not necessarily start to slow down as a function of the flow, as in the fundamental diagram.


Did I understand right ?


Best


François

De : sumo-user <sumo-user-bounces@xxxxxxxxxxx> de la part de Jakob Erdmann <namdre.sumo@xxxxxxxxx>
Envoyé : vendredi 27 août 2021 08:48
À : Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Objet : Re: [sumo-user] Validation of a road capacity with SUMO
 
Yes. The key issue of how to raise the density is discussed in https://sumo.dlr.de/docs/Tutorials/FundamentalDiagram.html


Am Fr., 27. Aug. 2021 um 14:16 Uhr schrieb François Vaudrin <francois.vaudrin.1@xxxxxxxxx>:

Hello,


I would like to generate around 2000 vehicles per hour to validate the capacity of a road with SUMO. According to the HCM Guide (and the Fundamental  Diagram), the capacity of a road is approximately 2000 veh / h / lane. If this number is exceeded, slowdown and congestion are expected to occur.


Is it possible to see this phenomenon in SUMO-GUI when this threshold is reached during a simulation ?


Thank you



François
 
 
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