Thank you this has eliminated the collision but still I receive plenty of 
warnings , is this a concern that requires attention.

Regards,
V.H.Pradeep

From: sumo-user <[email protected]> On Behalf Of Jakob Erdmann
Sent: Thursday, January 6, 2022 1:19 AM
To: Sumo project User discussions <[email protected]>
Subject: [EXTERNAL] Re: [sumo-user] Vehicle performs emergency braking

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The ACC model has a rather narrow range of applicability. In particular, the 
model is known to produce collisions at the default step-length of 1s. Better 
results can be achieved by setting a lower step length (i.e. 0.1s).

Am Do., 6. Jan. 2022 um 07:49 Uhr schrieb Pradeep Viyaluru Harinath 
<[email protected]<mailto:[email protected]>>:
To add here I am using the ACC car following model

Regards,
V.H.Pradeep

From: sumo-user 
<[email protected]<mailto:[email protected]>> On Behalf 
Of Pradeep Viyaluru Harinath
Sent: Wednesday, January 5, 2022 9:18 PM
To: Sumo project User discussions 
<[email protected]<mailto:[email protected]>>
Subject: [sumo-user] Vehicle performs emergency braking

Hello,

When I run the configuration I get the following error for many vehicles. Can 
anyone let me know what could be the cause of such warning and how to prevent 
it? Does the severity level =1 indicates high severity? Is this warning 
something that needs to be given careful thought since I had one vehicle 
involving in a collision.

"performs emergency braking with decel=-9.00 wished=4.50 severity=1.00"

I didn't notice such huge amount of warnings in earlier version.

Regards,
V.H.Pradeep
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