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Re: [sumo-user] HBEFA3 emissions behavior for decelerating vehicles
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Hi Andres,
the reason is probably that we do not have data for negative
accelerations in the HBEFA case and in our experiments the results came
closer to reality with this setting. I think it compensates a little for
another bug where the emissions with v=0 are already to high. But yes
this is a bug in the model, see https://github.com/DLR-TS/sumo/issues/2110
Best regards,
Michael
Am 23.01.2018 um 17:37 schrieb Andres Felipe Acosta Gil:
> Dear SUMO community.
>
> We would like to know: why the emissions of decelerating vehicles are
> zero instead of something like the emission value of a stopped vehicle?
> We noted this behavior in src/utils/emissions/HelpersHBEFA3.h, around
> the line 108. We think this value could be f[0]/scale instead of 0.
>
> if (c == HBEFA3_BASE || a < 0. || e == PollutantsInterface::ELEC) {
> return 0.;
> }
>
> Best Regards.
>
> --
> Andres Felipe Acosta Gil, M.Eng.
> Software developer
> Universidad Nacional de Colombia - sede Medellín
> Facultad de Minas
> Cra 80 No 65-223, Bloque M3, Oficina 209
> Tel: +57 (4) 4255092
> Institutional e-mail: afacostag@xxxxxxxxxxx <mailto:afacostag@xxxxxxxxxxx>
>
>
>
>
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