Re: [sumo-user] Multi-entry/exit detectors in TraCI

[Didac Busquets <didac.busquets@xxxxxxxxxx>]

Thanks for the clarification Jakob.

 

It would be useful to have the “exit” vehicles in TraCI as well.

 

               Didac

 

From: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> On Behalf Of Jakob Erdmann
Sent: 06 November 2018 14:02
To: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Subject: Re: [sumo-user] Multi-entry/exit detectors in TraCI

 

The traci output reflects vehicles that have gone passed the entry detector and not yet left via the exit detector (they are still 'within').

In comparison, the xml output for this detector contains distinct counts for vehicles within and for vehicles that have gone past the detector.

I supposed it would make sense to expose the latter group of vehicles via TraCI as well.

 

Am Di., 6. Nov. 2018 um 13:50 Uhr schrieb Didac Busquets <didac.busquets@xxxxxxxxxx>:

Hi,

 

I’m trying to use multi-entry/multi-exit detectors with TraCI and I’m getting strange results.

 

I want to use them to count how many vehicles take each turn on a junction.  I have defined one E3 detector with the entry one one lane approaching a junction and exit on one lane on the other side of the junction. I’ve also defined a second E3 detector with entry in the same lane as the first one and exit on another lane:

 

<additional xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/additional_file.xsd">

    <e3Detector id="e3Detector_0" pos="2459.46,3350.14" freq="900.00" file="e3Detector_0.xml">

        <detEntry lane="32116245#3_0" pos="119.86"/>

        <detExit lane="32116250#0_0" pos="2.33"/>

    </e3Detector>

    <e3Detector id="e3Detector_1" pos="2462.18,3351.07" freq="900.00" file="e3Detector_1.xml">

        <detEntry lane="32116245#3_0" pos="118.36"/>

        <detExit lane="32116247#0_0" pos="1.81"/>

    </e3Detector>

</additional>

 

However, when I use getLastStepVehicleIDs on each of the detectors, I get the same result:

 

libsumo.multientryexit.getLastStepVehicleIDs('e3Detector_0')

('37', '56', '57')

 

libsumo.multientryexit.getLastStepVehicleIDs('e3Detector_1')

('37', '56', '57')

 

How can it be the all vehicles have gone through 2 detectors if they have the exit point in different lanes (of different edges)? Am I interpreting wrongly what getLastStepVehicleIDs “Returns the list of ids of vehicles that have been within the named multi-entry/multi-exit detector in the last simulation step” means?

 

Thanks,

 

               Didac

 

 

			Didac Busquets / Co-Founder and Chief Scientist didac.busquets@xxxxxxxxxx / +44 (0) 7919 076 981 Immense Simulations Limited Studio J2, Witan Studios, 279 Witan Gate, Central Milton Keynes, MK9 1EJ w3w: ourselves.depend.backpack www.immense.ai
This e-mail including any attachments is intended for the addressee only. It is private, confidential and may be covered by legal professional privilege. If you have received this message in error please notify us immediately and remove it from your system. Immense Simulations Limited is a Company registered in England and Wales No. 09782647. Registered offices: International House, 24 Holborn Viaduct, City Of London, London, England, EC1A 2BN.

 

_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To change your delivery options, retrieve your password, or unsubscribe from this list, visit
https://www.eclipse.org/mailman/listinfo/sumo-user