Vehicles

Indices

The following table presents the dimensions indexing the parameters and variables (stock and flows) of the MFA model for vehicles.

Dimension	Index	Description
time	t	Temporal resolution, e.g. yearly values from 1950 to 2050
element	e	Individual elements
region	r	Geographical resolution, e.g. EU member states
vehicle types	v	Vehicle type, e.g. internal combustion engine, plug in hybrid
passenger car size	z	Vehicle size, e.g. SUV, micro car
steel products	l	Steel products, e.g. concrete reinforcing bars
plastics products	d	Plastics products in vehicles, e.g. PP, PVC

Parameters

The following table presents the data structure and signification of all input parameters expected by the MFA model for vehicles.

Parameter	Index	Description
Material intensity vehicles	v, z, l, d, g	Differentiates the use of steel in cars by car type and size
Vehicle registrations	t, r, v	Number of passenger vehicles differentiated by type and size
Consumption change	t, s	Indicates changes in the consumption per use sector
Translation	t, s	Indicates changes in the relationship between monetary and physical units
Lifetimes	s	Indicates lifetime of products per use sector (mean and standard deviation)

Variables

The following table presents the data structure and signification of the variables generated by the MFA model for vehicles.

Variable	Index	Description
Material inflows for vehicles	t, r, v, l, d, g	Yearly steel, plastics and glass inflows
Material outflows from vehicles	t, r, v, l, d, g	Yearly steel, plastics and glass outflows

Processes

The following table lists the processes in the MFA model for vehicles. We then provide a short description in plain English, an explanation of the exogenous parameters and model variables, and an algebraic formulation of the equations governing the process.

Short name	Process
EUSVeh	End use stock: Vehicles	Vehicles

Process (EUSVeh) “End use stock: Vehicles”

Short description

Within this process, the new registration of vehicles for passenger transport is translated into material (M) in- and outflows using the respective material intensities (MI). Based on the evolution of the new registration, the demand for new vehicles is determined, which reflects material inflows. Material outflows are determined based on the material inflows and lifetime distributions. Consequently, this process can provide input for the demand side and waste generation after consolidation with the other end use sectors.

Exogenous parameters

The parameter material intensity defines the share of material per passenger vehicles differentiated by vehicle type and size. The parameter new registrations defines the development of the new registrations differentiated by the same aspect.

Model variables

The variable material inflow is determined from the demand for new cars and the material intensity. The variable material outflow is determined from the material inflow and the lifetime distribution.

Algebraic formulation

M_Inflow_Cars = MI_Cars*Cars_Inflow M_Outflow_Cars = M_Inflow_Cars*LifetimeDist