--- title: Models/Emissions permalink: /Models/Emissions/ --- # Introduction SUMO includes the following emission models: - [HBEFA v2.1-based](../Models/Emissions/HBEFA-based.md): A continuous reformulation of the [HBEFA](http://www.hbefa.net/) v2.1 emissions data base (open source); - [HBEFA v3.1-based](../Models/Emissions/HBEFA3-based.md): A continuous reformulation of the [HBEFA](http://www.hbefa.net/) v3.1 emissions data base (open source); - [PHEMlight](../Models/Emissions/PHEMlight.md), a derivation of the original [PHEM](http://www.ivt.tugraz.at/de/forschung/emissionen.html) emission model (closed source, commercial). - [Electric Vehicle Model](../Models/Electric.md#emission_output): an electricity-consumption model by [Kurczveil, T., López, P.A., Schnieder](../Models/Electric.md#publications). Literature on the Models and their implementation can be found at [the DLR electronic library (http://elib.dlr.de/89398/)](http://elib.dlr.de/89398/). # Using Models All models implement different vehicle emission classes. These classes can be assigned to vehicles by using the vehicle type attribute "`emissionClass`". Available emission classes can be found within the emission model descriptions ([HBEFA v2.1-based](../Models/Emissions/HBEFA-based.md), [HBEFA v3.1-based](../Models/Emissions/HBEFA3-based.md), [PHEMlight](../Models/Emissions/PHEMlight.md)). The current default model is `HBEFA3/PC_G_EU4` (a gasoline powered Euro norm 4 passenger car modeled using the HBEFA3 based model). # Pollutants covered by models

model | pollutant / measurement
--- | ---
CO2 | CO | HC | NOx | PMx | fuel consumption
HBEFA v2.1-based | x | x | x | x | x | x
HBEFA v3.1-based | x | x | x | x | x | x
PHEMlight | x | x | x | x | x | x

# Outputs Pollutants emitted by the simulated vehicles can be visualised using [SUMO-GUI](../SUMO-GUI.md) or be written into output files, both by [SUMO](../SUMO.md) and [SUMO-GUI](../SUMO-GUI.md). The following output can be used: - [trip information](../Simulation/Output/TripInfo.md): In combination with the emissions device, the tripinfo output contains the sum of all pollutants emitted / fuel consumed during a vehicle's journey. To record emissions for all trips add the options **--tripinfo-output** and **--device.emissions.probability 1.0**. Alternatively, you can configure emission recording for selected vehicles using [generic parameters](../Definition_of_Vehicles,_Vehicle_Types,_and_Routes.md#devices). - [edgelane emissions](../Simulation/Output/Lane-_or_Edge-based_Emissions_Measures.md): These output files contain the pollutants emitted at an edge / a lane, aggregated over a variable time span - [emission-output](../Simulation/Output/EmissionOutput.md): Unaggregated emission values for every vehicle and time step - [Color vehicles by emissions](../SUMO-GUI.md#vehicle_visualisation_settings): This can be used to show the emissions for each vehicle during each simulation step - [Color lanes/edges by emissions](../SUMO-GUI.md#edgelane_visualisation_settings): This can be used to show the emissions for all vehicles on a lane during each simulation step (or for the whole edge in [Simulation/Meso](../Simulation/Meso.md)). # Further Interfaces The tool [traceExporter.py](../Tools/TraceExporter.md) converts SUMO's [fcd-output](../Simulation/Output/FCDOutput.md) into files that can be directly read by the [PHEM](http://www.ivt.tugraz.at/de/forschung/emissionen.html) application. A [tutorial on generating trace files (including PHEM input files)](../Tutorials/Trace_File_Generation.md) using this tool is available.
This part of SUMO was developed, reworked, or extended within the project "COLOMBO", co-funded by the European Commission within the Seventh Framework Programme.
This part of SUMO was developed, reworked, or extended within the project "AMITRAN", co-funded by the European Commission within the Seventh Framework Programme.