Re: [sumo-user] How to obtain the red duration for a link with given ind

[Tianjia Yang <tianjiayang254@xxxxxxxxx>]

Thanks for the quick reply. 

I would like to obtain the green or red duration of each link, not the duration of the phases. 

I use the NEMA phase program. Even though the phase is changing, the signal light in some of the links (turning directions) is kept unchanged. For example, if the north-through/south-through phase switches to the north-through/north-left phase, the signal light in the north-through direction remains green. Therefore, the green duration for the north-through links is greater than each of the single phases.

So I am wondering if there is a way to get this kind of value via Traci.

Sincerely,

Tianjia Yang

On Fri, May 5, 2023 at 2:21 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

trafficlight.getAllProgramLogics will return a list of programs and for each program you can retrieve the states and durations for all phases.

Am Fr., 5. Mai 2023 um 18:11 Uhr schrieb Tianjia Yang <tianjiayang254@xxxxxxxxx>:

Hi there,

I am trying to use Python to control a traffic light based on the duration in seconds of each link. So I need to obtain the current green or red duration for the given link via Traci.

I know that GetPhaseDuration can return the duration for the current phase. But I didn't find a way to get the current green or red duration for a given link.

Would your please help me with this? Thank you for your time.

Sincerely,

Tianjia Yang

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