Methodology for comparing the consumption of liquid fuels in transport:
The calculation of historical emissions (1990-2021) is based on methodologies (navigation and railways) according to the 2006 IPCC Guidelines and 2019 EMEP/EEA Guidebooks, advanced calculations using EUROCONTROL and modeling of road transport emissions using the COPERT model. For the correct calculation of emissions, detailed data on traffic intensity and especially on total fuel consumption are required. A methodology was prepared for the unification of fuel consumption dataflows from official sources, which was published in January 2021.
Therefore, the starting point for gaining control over emissions is a thorought understanding of the current situation and an understanding of how emission trends have changed from a quantitative point of view, but also from a compositional point of view. Based on official sources, it is possible to prepare a detailed, complete and consistent set of data on vehicles and their activity. This file is a basis for calculating the most accurate emissions at the national level using highly advanced emission modeling tools such as the COPERT model.
The COPERT model extended with the Command Line Interface (CLI) is used to model road transport emissions forecasts until 2050. The dataset required for creating forecasts was prepared in cooperation with colleagues from the Aristotle University of Thessaloniki and based on assumptions from the Sybil database. This data has been adjusted based on the most current national fleet data and anticipated policies and measures.
We divide policies and measures into 4 categories:
- Measures affecting transport intensity at the national level (modal shift)
- Measures affecting emission factors (EU directives)
- "Soft" measures that cannot be quantified
- Measures that can be quantified, but not at the national level (ITS, non-motorized transport)