TCS Confidential Dear Mirko,
Thank you for your explanation. I am able to achieve maximum density in my current simulations, but i could see flow is constantly increasing with the density, which is not the case as per MFD. I.e bottom U shaped curve is not coming. Speed is also constantly decreasing. Can you help in this. Regards Manikanta TCS Confidential ________________________________ From: sumo-user <sumo-user-boun...@eclipse.org> on behalf of Mirko Barthauer via sumo-user <sumo-user@eclipse.org> Sent: Wednesday, December 13, 2023 3:02 PM To: Sumo project User discussions <sumo-user@eclipse.org>; Desu Venkata Manikanta via sumo-dev <sumo-...@eclipse.org> Cc: Mirko Barthauer <m.bartha...@t-online.de> Subject: Re: [sumo-user] Flow-Density MFD Plots External Email : Be cautious while opening any links or attachments. Dear Manikanta, the "number" attribute refers to an absolute number of vehicles. If you want to vary the flow duration but keep the flow rate constant (and the vehicles' distances at insertion all the same), you are better off using the "vehsPerHour" attribute. There you enter the number of vehicles you would expect for an hour of this flow. Changing the flow duration will scale the number of vehicles proportionally. The instable part of the fundamental diagram (high density) is difficult to reproduce. Even this example<https://sumo.dlr.de/docs/Tools/Visualization.html#fundamental_diagram_from_edgedata> in our documentation shows very few data points at high densities. Best regards Mirko -----Original-Nachricht----- Betreff: [sumo-user] Flow-Density MFD Plots Datum: 2023-12-13T07:18:50+0100 Von: "Desu Venkata Manikanta via sumo-user" <sumo-user@eclipse.org> An: "Desu Venkata Manikanta via sumo-dev" <sumo-...@eclipse.org> TCS Confidential Hi Team, I am confused of two concepts in SUMO. 1. How the insertion of vehicles will happen, if i use same "number" in flow command. 2. For the same number of vehicles, will the simulation end time effect the insertion rate. Basically, I want to plot the MFD by setting the max number of vehicles with number attribute in flow. I am using the density value from the edgeStats output file. However, I am not able to get the bottom U-shaped curve for flow-density graph. I have referred the circular loop in docs, but no improvement. Please guide me how to get this graph. Regards Manikanta TCS Confidential =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you
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