[sumo-user] Bus emission factor in HBEFA4-based emission model

[Addina Shafiyya Ediansjah <addina_shafiyya.ediansjah@xxxxxxxxxxxxxxxxxxxxx>]

Dear all,

 

I have a question about the emission factor for buses in the HBEFA4-based emission model. When I run a query on the HBEFA database, the emission factor is given as either an average or a 0% or 100% load. Which of these values is used in the HBEFA4-based emission model?

 

As a follow-up to the first question, I tried changing the 'mass' parameter of the urban bus, but this did not seem to affect the emission values. Could this be because 'mass' is implicitly stored in the emission function in this case (so changing it in the simulation does not affect the emission result)? Is there a correct approach to assign the mass in this scenario? Any suggestions would be appreciated. Thanks in advance.

 

 

Warmest regards,

 

Addina