Re: [sumo-user] Sigma: Driver imperfection

[Fredrik Nilsson <frnilss@xxxxxxxxxxxxxxxxxxx>]

Thanks for the clarification!

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From: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> on behalf of Jakob Erdmann <namdre.sumo@xxxxxxxxx>
Sent: Friday, March 1, 2019 10:24:27 AM
To: Sumo project User discussions
Subject: Re: [sumo-user] Sigma: Driver imperfection

 

The behavior of sigma is carFollowModel dependent. In the default Krauss-model it applies uniform randomDeceleration from [0, sigma * min(accel, currentSpeed)] to the speed that would otherwise be chosen due to car-following or junction-approach. Note, that there is a strong interaction with the simulation step-length parameter.

We are actively working on alternative models for driver imperfection (https://sumo.dlr.de/wiki/Driver_State)

regards,

Jakob

Am Do., 28. Feb. 2019 um 12:32 Uhr schrieb Fredrik Nilsson <frnilss@xxxxxxxxxxxxxxxxxxx>:

Hi,

I am wonder if there is a more technical explanation of what the driver parameters sigma (driver imperfection) does to the car-following model?

BR,

Fredrik

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