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Re: [sumo-user] Clarification on output of E1 detectors in mesoscopic simulation
Mesoscopic simulation does not distinguish between lanes (except for some turn lanes at junctions).
The mesoscopic models is based on queues. Often, a queue models the whole edge and  the number of lanes only modifies the capacity of that queue.
Placing one e1Detector per edge is therefore enough to obtain the whole data.

regards,
Jakob

Am So., 14. Nov. 2021 um 09:24 Uhr schrieb Mahajan, Vishal <vishal.mahajan@xxxxxx>:
Dear all, 

I am trying to calibrate a SUMO scenario that uses mesoscopic simulation (—mesosim). I came across the following in the Documentation for the mesoscopic simulation:

  • No lane specific output is possible.

I have two questions related to this?

First, why is it that the lane-based outputs are not possible here? Is it because that the lane-level simulation resolution is lost in the mesoscopic simulation?

Second, are outputs from the E1detectors (loop detectors) for a mesoscopic simulation are also edge-based. Because I observed that all the lanes of a specific edge have equal outputs (see output snippet below), this seems likely, but I think it is better to confirm. 

<interval begin="18000.00" end="18900.00" id="e1Detector_108626246_0" sampledSeconds="202.39" density="2.45" laneDensity="0.82" occupancy="0.41" waitingTime="0.00" timeLoss="10.79" speed="20.90" departed="0" arrived="0" entered="46" left="46"/>
<interval begin="18000.00" end="18900.00" id="e1Detector_108626246_1" sampledSeconds="202.39" density="2.45" laneDensity="0.82" occupancy="0.41" waitingTime="0.00" timeLoss="10.79" speed="20.90" departed="0" arrived="0" entered="46" left="46"/>
<interval begin="18000.00" end="18900.00" id="e1Detector_108626246_2" sampledSeconds="202.39" density="2.45" laneDensity="0.82" occupancy="0.41" waitingTime="0.00" timeLoss="10.79" speed="20.90" departed="0" arrived="0" entered="46" left="46"/>

Apologies, if a similar question has been asked before, could you please link me to that thread.

Thanks for your time.

Best Regards
-

Vishal Mahajan, M. Sc.

Technical University of Munich (TUM)
TUM School of Engineering and Design (ED)
Department of Mobility Systems Engineering
Chair of Transportation Systems Engineering (TSE)

vishal.mahajan@xxxxxx
https://www.mos.ed.tum.de/en/tse/home/

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