Perfect!

Thank you for your response, Jacob.

El sáb, 7 may 2022 a las 13:07, Jakob Erdmann (<[email protected]>)
escribió:

> When using a yellow time of 3 seconds at a road speed of 50km/h, then cars
> may have to brake for ~3m/s^2  in some situations.
> Emergency braking occurs for cars that have very low decel values (i.e.
> ~1.2).  Possible mitigations are:
> a) define emergencyDecel as 4.5 and disable the emergency braking warning
> (--mergencydecel.warning-threshold 1.1)
> b) let cars drive at yellow (jmDriveAfterYellowTime 3)
> c) allow higher decel values
> d) increase length of yellow phase
>
> regards,
> Jakob
>
>
> Am Sa., 7. Mai 2022 um 17:35 Uhr schrieb Jaime Moya <[email protected]>:
>
>> Hi,
>>
>> I'm getting the "Warning: Vehicle 'id_v' performs emergency braking with
>> decel..." message. All of these messages are related to vehicles braking at
>> traffic lights.
>>
>> Reading the documentation (
>> https://sumo.dlr.de/docs/Simulation/Safety.html) I found that "...*yellow
>> phases which are too short in relation to the vehicle speed (giving
>> insufficient time to come to a stop). By default this causes strong braking
>> (Warning: emergency braking) potentially followed by rear-end collisions*".
>> However, I defined a 3 seconds yellow phase, plus a 1 second red-red phase,
>> so I think this is enough time considering a near 50 km/h edge max. speed.
>>
>> What would be the best way to solve this?
>>
>> What would happen if I modify the emergencyDecel parameter to 4.5 m/s2?
>>
>> I attach the simulation files.
>>
>> Thank you in advance
>>
>>
>>
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