European Commission logo
DIONE

Road Transport Fleet Impact Model

Transporttransport modelroad transportscenario analysiselectromobilityCO2 emissionsalternative fuelsenergy consumptionair pollutant emissionsCost CurveTotal Costs of Ownership

Quality & Transparency

Quality

Model uncertainties

Models are by definition affected by uncertainties (in input data, input parameters, scenario definitions, etc.). Have the model uncertainties been quantified? Are uncertainties accounted for in your simulations?

no
Most of the DIONE modules are deterministic, such that uncertainties relate mainly to the quality of input data, which is hard to quantify and quality checks of which remain with data providers. The DIONE Cost Curve Model uses random and probabilistic elements in the exploration process for determining optimal technology packages, which according to internal test have very little impact on the final cost curves.

Sensitivity analysis

Sensitivity analysis helps identifying the uncertain inputs mostly responsible for the uncertainty in the model responses. Has the model undergone sensitivity analysis?

yes
Sensitivities of model results have been explored before making use of the model, and by verifying the response of model outcomes to the variation of input parameters during intensive scenario calculation.

Have model results been published in peer-reviewed articles?

yes

Has the model formally undergone scientific review by a panel of international experts?

Please note that this does not refer to the cases when model results were validated by stakeholders.

no

Model validation

Has model validation been done? Have model predictions been confronted with observed data (ex-post)?

no
Model projections regard future years and cannot yet be confronted with observed data.

Transparency

To what extent do input data come from publicly available sources?

This may include sources accessible upon subscription and/or payment

Based on both publicly available and restricted-access sources

Is the full model database as such available to external users?

Whether or not it implies a specific procedure or a fee

no
Most modules rely extensively on publicly available data. Input data used for the Cost Curves and total costs of ownership calculations is referenced in the respective JRC reports.

Have model results been presented in publicly available reports?

Note this excludes IA reports.

yes

Have output datasets been made publicly available?

Note this could also imply a specific procedure or a fee.

no
Some fleet model outputs are summarized in papers; all final JRC cost curves as well as exemplary total cost of ownership (TCO) results are specified in the respective JRC reports; central TCO results have been included in the impact assessments for CO2 standards for LDV and HDV.

Is there any user friendly interface presenting model results that is accessible to the public?

For instance: Dashboard, interactive interfaces...

no

Has the model been documented in a publicly available dedicated report or a manual?

Note this excludes IA reports.

yes
The cost curve model, cross-optimization module and TCO module documentation have been published in two JRC reports (for LDV and HDV respectively). For the fleet impact model, an updated model version is under development, publication of the model documentation outstanding.

Is there a dedicated public website where information about the model is provided?

no

Is the model code open-source?

no

Can the code be accessed upon request?

no
The model code is under development and cannot presently be shared outside the Commission.