Avoiding production processes

Question

Hi,

My LCA studies is mostly focus on the end of life (waste management) part of life cycle. In every single processes that I use from ecoinvent are include the production processes, e.g. for transportation, I`m using small truck or van to transport the waste from from one point to another point, then when I try to do the model graph, I can`t find process that not involve production part, so it`s still involve production process of the truck or van. Because I`m not considering the emissions from the production part, only during transporting. Could you help me on this?

Thanks

Answer 1

I would copy the unit processes of the selected transportation processes and either erase all the links to providers or directly the input product flows from them and use these copies in my model. This way only the direct impacts from transport would remain without considering the indirect impats from upstream processes.