Re: [sumo-user] SpeedFactor and SpeedDev

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

the normc definition sets a standard deviation of 0.1 and then the 'speedDev' attribute overwrites this with 0.  speedDev should not be used when using 'normc' or 'norm'.

speedDev is meant to be used in the combination 'speedFactor="1" speedDev="0.1"' (which is an older form of defining the speed distribution)

Am Mi., 9. Feb. 2022 um 07:50 Uhr schrieb mehmet nedim yavuz <mehmetnedimyvz@xxxxxxxxx>:

Dear Jakob, sorry one more question on this topic. I set the  speedFactor=normc(1,0.1,0.2,2) and speedDev="0" thus speedFactor=1 for all vehicles in the tripinfo output file. If I set the speedDev="0",it does not matter normc(mean,deviation,lower cutoff,upper cutoff) form. All speed factors of the vehicle are taken 1. I would like to ask the difference between the  "deviation" term in normc() and SpeedDev parameter. Regards.

Jakob Erdmann <namdre.sumo@xxxxxxxxx>, 8 Şub 2022 Sal, 14:43 tarihinde şunu yazdı:

>  I would like to model a Level-4 (highly automated level) autonomous vehicle, and it is assumed to obey the road code exactly. It can not exceed the speed limit (i.e 50 km/hr for my case). In this case, speedFactor can be defined in <vtype> speedFactor="1.0" and speedDev="0". Am I right?

Yes .

> Other question,  speedFactor="1.0" and speedDev="0" the same as norm (1.0,0)?

Yes.

> Last question: how do the "lower cutoff" and "upper cutoff" parameters work? Regards.

The distribution is sampled repeatedly until a value from [lowerCutoff, upperCutoff] is found.

_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user

_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user

_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user