Skip to main content
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [sumo-user] Action delay
The only way to get this kind of delay is via an external (traci) control script that (continuously) records the speeds desired by the model at time t and overwrites the speed at time t + 2. See here for a related discussion and supporting traci functions: https://github.com/eclipse/sumo/issues/7190

Am Sa., 5. Dez. 2020 um 00:11 Uhr schrieb Yasmina Jaafra <yasmina.jaafra@xxxxxxxxx>:
Hello Jakob,

Ok, now I understand better the action-step-length option. However, I need to reflect a delay in action application while training the reinforcement learning agent. Indeed, in real-world a brake decision at t (k) is executed at t (k + 2) due to the vehicle transmission mechanisms which require some time to transmit the driver maneuver until wheels. Is there any functionality in SUMO that can support such training?  

Best regards,

Le ven. 4 déc. 2020 à 12:30, Jakob Erdmann <namdre.sumo@xxxxxxxxx> a écrit :
No. It means that vehicles will only change their acceleration at most every 0.3s and will keep constant acceleration for 2 out of 3 simulation steps. Thus their reaction to certain events will appear delayed. Since each action is executed as soon as it is computed (in an action step) there is no queue.

Am Fr., 4. Dez. 2020 um 13:07 Uhr schrieb Yasmina Jaafra <yasmina.jaafra@xxxxxxxxx>:

Hello Jakob,


Thank you for your reply.


I enabled the "–default.action-step-length option". Currently I have these settings:


step length = 0,1 s

action length = 0,3 s


Does this mean that an action taken at time step t(k), will only be executed at t(k+3)?

And given that Python client is sending an action every time step, would there be an action queue on Sumo side to manage the action control delay?


Regards,


Le jeu. 3 déc. 2020 à 15:29, Jakob Erdmann <namdre.sumo@xxxxxxxxx> a écrit :

Am Do., 3. Dez. 2020 um 14:29 Uhr schrieb Yasmina Jaafra <yasmina.jaafra@xxxxxxxxx>:
Hello, 

I would like to apply control action delay on the ego vehicles. Is there any option to enable the delay between states and actions in Sumo.

Best regards,  


_______________________________________________
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
_______________________________________________
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

Back to the top