Saturation flow mainly depends on vehicle parameters. However, when you try to achieve this flow in your simulation it also depends on the speed and spacing of vehicles that enter your simulation (departSpeed, departPos, --step-length). See https://sumo.dlr.de/docs/FAQ.html#how_do_i_get_high_flowsvehicle_densities
To measure it you can use any of the location-based measures ( https://sumo.dlr.de/docs/Simulation/Output/Lane-_or_Edge-based_Traffic_Measures.html, https://sumo.dlr.de/docs/Simulation/Output.html#simulated_detectors) Am Fr., 15. Nov. 2019 um 08:51 Uhr schrieb Thilagavathy Giri < [email protected]>: > thanks sir. > i will make modifications . is there any way to fix saturation flow rate > of the intersection in sumo. if it is already determined how to get > that value > > On Fri, Nov 15, 2019 at 2:49 AM Jakob Erdmann <[email protected]> > wrote: > >> In the current implementation, detectors for actuation are only used if >> all traffic from the detector lane gets the unconditional green light ('G') >> in a particular phase. >> Otherwise it could cause useless phase extensions when the first vehicle >> on a given lane is not allowed to drive. >> In your signal plan all lanes have a mixture of green/red connections are >> a conditional green light ('g') and thus actuation is disabled. >> >> regards, >> Jakob >> >> Am Mo., 11. Nov. 2019 um 06:11 Uhr schrieb Thilagavathy Giri < >> [email protected]>: >> >>> hello sir, >>> with this i have attached my net.xml file.thanks for your support. >>> >>> with thanks >>> M S Thilagavathy >>> Research scholar , >>> >>> >>> On Sun, Nov 10, 2019 at 7:44 PM Jakob Erdmann <[email protected]> >>> wrote: >>> >>>> The warnings "has no controlling detector" indicate that actuation is >>>> not active at that intersection. This would also be the reason why >>>> different parameters do not affect the outputs. >>>> The most likely reason for that warning are unprotected left turns >>>> without dedicated turning lanes. Please post a network that contains just >>>> the intersection controlled by traffic light n2. >>>> >>>> Am Fr., 8. Nov. 2019 um 02:22 Uhr schrieb Thilagavathy Giri < >>>> [email protected]>: >>>> >>>>> hi all, >>>>> i tried with gap-based actuated traffic control . i want to know >>>>> whether the Max-gap value will affect the summary or trip output. for a >>>>> four leg straight cross intersection, flow is set to 500v/hr. i changed >>>>> max-gap value to 2, 4, 5, 9. but there is no difference in summary or trip >>>>> output. is it possible to get a difference.? >>>>> my another query is >>>>> when simulating with default actuated phase plan there is no warning. >>>>> default phase plan is >>>>> <tlLogic id="n2" type="actuated" programID="0" offset="0"> >>>>> <param key="max-gap" value="3.0"/> >>>>> <param key="detector-gap" value="2.0"/> >>>>> <param key="show-detectors" value="true"/> >>>>> <param key="file" value="NULL"/> >>>>> <param key="freq" value="300"/> >>>>> <phase duration="39" state="GggrrrGggrrr" minDur="15" >>>>> maxDur="50"/> >>>>> <phase duration="6" state="yyyrrryyyrrr"/> >>>>> <phase duration="39" state="rrrGggrrrGgg" minDur="15" >>>>> maxDur="50"/> >>>>> <phase duration="6" state="rrryyyrrryyy"/> >>>>> </tlLogic> >>>>> >>>>> if i change this phase plan as below >>>>> >>>>> >>>>> <additional> >>>>> <tlLogic id="n2" type="actuated" programID="1" offset="0"> >>>>> <param key="max-gap" value="9.0"/> >>>>> <param key="detector-gap" value="2.0"/> >>>>> <param key="show-detectors" value="true"/> >>>>> <param key="file" value="NULL"/> >>>>> <param key="freq" value="300"/> >>>>> <phase duration="45" state="rgrGrgrgrGrg" minDur="15" >>>>> maxDur="50"/> >>>>> <phase duration="5" state="ryryryryryry"/> >>>>> <phase duration="35" state="GrgrgrGrgrgr" minDur="15" >>>>> maxDur="50"/> >>>>> <phase duration="5" state="yryryryryryr"/> >>>>> </tlLogic> >>>>> </additional> >>>>> i get some warning >>>>> >>>>> Loading configuration... done. >>>>> Loading net-file from 'E:\thilaga\sumo_demo\thiactuated.net.xml'... >>>>> done (10ms). >>>>> Loading additional-files from >>>>> 'E:\thilaga\sumo_demo\passdist.add.xml'... done (26ms). >>>>> Loading additional-files from >>>>> 'E:\thilaga\sumo_demo\optacttls.add.xml'... >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> *Warning: At actuated tlLogic 'n2', actuated phase 0 has no >>>>> controlling detectorWarning: At actuated tlLogic 'n2', actuated phase 2 >>>>> has >>>>> no controlling detectorWarning: At actuated tlLogic 'n2', linkIndex 0 has >>>>> no controlling detectorWarning: At actuated tlLogic 'n2', linkIndex 3 has >>>>> no controlling detectorWarning: At actuated tlLogic 'n2', linkIndex 6 has >>>>> no controlling detectorWarning: At actuated tlLogic 'n2', linkIndex 9 has >>>>> no controlling detectordone (2*ms). >>>>> Loading additional-files from >>>>> 'E:\thilaga\sumo_demo\laacdum.add.xml'... done (1ms). >>>>> Loading done. >>>>> Simulation started with time: 0.00 >>>>> Warning: Vehicle '7.0' performs emergency braking with decel=-9.00 >>>>> wished=4.50 severity=1.00, time=41.00. >>>>> Simulation ended at time: 7897.00 >>>>> >>>>> is it ok to proceed or we need to rectify it. how to rectify . >>>>> >>>>> >>>>> with thanks and regards >>>>> M S Thilagavathy >>>>> _______________________________________________ >>>>> sumo-user mailing list >>>>> [email protected] >>>>> To change your delivery options, retrieve your password, or >>>>> unsubscribe from this list, visit >>>>> https://www.eclipse.org/mailman/listinfo/sumo-user >>>>> >>>> _______________________________________________ >>>> sumo-user mailing list >>>> [email protected] >>>> To change your delivery options, retrieve your password, or unsubscribe >>>> from this list, visit >>>> https://www.eclipse.org/mailman/listinfo/sumo-user >>>> >>> _______________________________________________ >>> sumo-user mailing list >>> [email protected] >>> To change your delivery options, retrieve your password, or unsubscribe >>> from this list, visit >>> https://www.eclipse.org/mailman/listinfo/sumo-user >>> >> _______________________________________________ >> sumo-user mailing list >> [email protected] >> To change your delivery options, retrieve your password, or unsubscribe >> from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> > _______________________________________________ > sumo-user mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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