The approach sounds reasonable. However, it won't cover all kinds of
emission outputs:
https://sumo.dlr.de/docs/Models/Emissions.html#outputs
cheers,
Jakob
Am So., 23. Feb. 2020 um 20:41 Uhr schrieb The div <d...@thoda.uk>:
> Hi,
> I'm playing with multiple aspects of vehicle behaviour associated with
> parking.
>
> It appears that when the parking/stopping period has ended and the vehicle
> is trying to re-enter the net - ie engine is running - emissions are not
> computed until the vehicle is actually on the road.
> In my models this is significant because vehicles are often blocked from
> entering the lane, by other vehicles, for many sim steps - equivalent to
> 5-10mins real time.
>
> I don't pretend to understand the emission model yet, however I have been
> looking at what seems a relatively simple way to get these emission values
> output - this is what i did:
> 1) add a new flag - 'myTryingToEnter' to SUMOVehicle/MSVehicle etc.
> paralleling the 'myAmOnNet' flag with associated get/set functions. (This
> could equally be an 'engineStarted' flag if there was a more generic use
> case.)
> 2) change MSVehicleTransfer::checkInsertions line 127 to set this
> flag, before the insertion check, and clear the flag, in the block after
> insertion success.
> 3) change MSEmissionExport::write line 51 if
> (veh->isOnRoad()) { to something like if
> (veh->isOnRoad() || veh->isTryingToEnterRoad() ) {
>
> This seems to give me (idling) emission outputs with no obvious side
> effects wrt my results or the test sets.
>
> My questions are
> a) Is this a sensible approach or is it likely to break something I don't
> understand
> b) If not please could you give me any pointers to implementing this
> functionality.
>
> cheers
> div
>
>
>
>
>
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