Re: [sumo-user] e1 and e2 detector

[ali mirzaei <alimrz222@xxxxxxxxx>]

Hi Menno,
This is what the mannaul says:
getLastStepMeanSpeed(self, detID)

getLastStepMeanSpeed(string) -> double
 
Returns the current mean speed in m/s of vehicles that were on the named e2.

I am looking for a tool by which I can extract the flow characteristics at the time the vehicle is on the detector. So, is there any option to get more data of vehicles in traci.lanearea module? 

Sincerely,

ALI

On Fri, May 14, 2021 at 11:33 AM Menno van der Woude <menno@xxxxxxxxxxxxxxxxxx> wrote:

Hello Ali,

the e1 detector has no length, I think you should use an e2 detector if
you want to have a detector that covers an area.

Regarding the functions: when do you call these? I'd expect -1 and ()
when no vehicles were on the detector during the last step. So at the
start of the simulation, you will most likely get those results. And
afterwards if there has been no traffic.

Greets, Menno

On 13-5-2021 23:28, ali mirzaei wrote:
> Hi everyone,
> 1- What is the length of the induction loop(e1detector)?
> 2- in the case of e2detector, when I generate my add.XML file consisting of:
>     <e2Detector id="e2Detector_1" lane="e2_0" pos="15.22"
> length="10.00"        freq="5" file="e2_det.xml" friendlyPos="1"/>
> and call the functions:
> print(traci.lanearea.getLastStepMeanSpeed("e2Detector_1"))
> print(traci.lanearea.getLastStepVehicleIDs("e2Detector_1"))
> the answer is "-1" and "()".
> Why does this happen?
> Any help would be appreciated.
>
> Regards,
> Ali
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