Hello,
in case you a referring to the red/yellow phase that precedes the green
phase, this is treated by vehicles like a red phase (forcing them to stop).
To overcome this rule you need to set the speedmode to disregard red lights.
See http://sumo.dlr.de/wiki/TraCI/Change_Vehicle_State#speed_mode_.280xb3.29

regards,
Jakob

2017-01-20 18:15 GMT+01:00 Vaibhav Rungta <[email protected]>:

> Hello Folks,
> I am trying to create an algorithm for vehicles approaching signalized
> intersection.
>
> One of the observation for the Basic Krauss Model is that vehicles begin
> moving when the light turns green  and these vehicles accelerate at nearly
> 3 m/s^2 to 4 m/s^2. Higher acceleration result in more emissions and fuel
> consumption.
>
> I plan to make the vehicles begin moving in yellow phase at a lower so that
> the vehicles begin moving earlier instead of accelerating faster and thus
> maintaining the flow.
>
> Please suggest how I may make the vehicle begin moving at yellow. The TraCI
> code I have written instructs the vehicles to begin moving at yellow (using
> the slowDown command) phase but when I execute the program it doesn't
> happen. Thanks.
>
> Regards,
> Vaibhav Rungta
> Graduate Student - Industrial and Systems Engineering
> Graduate Assistant - Toyota Production Systems Lab
> Research Assistant - University Transport Research Center
> 585-754-7133
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