The default 'accel' parameter is the same for all models (and this is reflected in the documentation). However, the driving dynamics still differ between the models: - Krauss makes full use of it's default accel and decel values in almost all traffic situations - ACC/CACC sometimes accelerate with less than their accel value (thereby achieving smoother trajectories)
Am Di., 1. Feb. 2022 um 04:08 Uhr schrieb Royal Bhandari < [email protected]>: > Thanks, Jakob for the explanation. > > To check my understanding, the default acceleration of the Krauss model is > higher than that of ACC and CACC? Is there documentation listing this? > > Regards, > Royal > > > > On Mon, Jan 31, 2022 at 4:46 AM Jakob Erdmann <[email protected]> > wrote: > >> The outputs are probably "valid" for the particular models but whether >> the ACC/ CACC models conform to the behavior of any particular real life >> fleet cannot be answered without prior calibration. Please also refer to my >> previous answer (https://www.eclipse.org/lists/sumo-user/msg11040.html). >> Obviously, the same holds for the default Krauss model which may differ >> from the driving behavior of your human fleet depending on the model >> parameters (and their distribution within the fleet). >> The metric of 'waiting time' is sensitive to the speed threshold to >> determine 'halting'. Thus, the strong accelerations performed by the Krauss >> model may have an outsized impact on this metric compared to vehicles that >> are "slower" to start. >> >> regards, >> Jakob >> >> Am So., 30. Jan. 2022 um 08:25 Uhr schrieb Royal Bhandari < >> [email protected]>: >> >>> Hello, >>> >>> I am using average speed and waiting time per vehicle as my urban >>> traffic performance index. I am comparing CACC car-following model and ACC >>> car following models with default krauss model. I was expecting that the >>> CACC model will have lower waiting time and higher speed in comparison to >>> ACC and Krauss model in a congested network. This is true for speed but not >>> for the waiting time. Am I missing something here or are the outputs which >>> I obtained valid? >>> >>> Regards, >>> Royal >>> _______________________________________________ >>> sumo-user mailing list >>> [email protected] >>> To unsubscribe from this list, visit >>> https://www.eclipse.org/mailman/listinfo/sumo-user >>> >> _______________________________________________ >> sumo-user mailing list >> [email protected] >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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