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Re: [sumo-user] Compute Fuel Consumption and CO2 emissions in Traci
  • From: Michael Behrisch <oss@xxxxxxxxxxx>
  • Date: Sat, 1 Jun 2019 12:42:58 +0200
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Hello,
the documentation was wrong and is fixed now.

Best regards,
Michael

Am 22.05.19 um 08:11 schrieb Jakob Erdmann:
> Hello,
> there is a mismatch between the API and the documentation
> (https://github.com/eclipse/sumo/issues/5659).
> The returned values are normalized to per-second emissions (which causes
> inflation by a factor of 10 or 5 if you simply add them with higher
> frequency).
> I'm not yet sure whether the API or the documentation will be changed
> but for now you can simply scale the data according to the simulation
> step-length.
> 
> regards,
> Jakob
> 
> Am Di., 21. Mai 2019 um 22:20 Uhr schrieb Do Duc Le <doducle@xxxxxxxxxx
> <mailto:doducle@xxxxxxxxxx>>:
> 
>     Hi all,
> 
>     I want to compute the fuel consumption and CO2 emission and I do that
>     with traci.vehicle.getFuelConsumption(veh) and
>     traci.vehicle.getCO2Emission(veh), but the computed values are too
>     high,
>     e.g I have 75 Litre / 100 km for fuel consumption for traffic in cities
>     (maxspeed 55 km/h). Also this should vary for different step-length,
>     but
>     it doesn't matter if I use a step-length of 0.1 or 0.2, at each
>     simulation step I get the same value for one vehicle about 1.06 for
>     fuel
>     consumption and 2473.8 for CO2 emission. As a result I get about double
>     the fuel consumption and CO2 emission for step-length 0.1 as for
>     step-length 0.2, the total driven distance is about the same in both
>     cases.
>     Can someone help? Is this the correct way to compute fuel consumption
>     and CO2 emissions?
> 
>     Best regards,
>     Duc
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