|| LIPASTO main page | Unit emissions home page |||Contacts|
|| Methodology | User guide | Standard EN 16258 |||Suomeksi|
In the following we provide guidance for using the LIPASTO unit emission factors.
LIPASTO unit emission database covers emission factors for road, rail, waterborne and air transport as well as working machines. Both passenger and freight transport in Finland, and for waterborne and air transport also international traffic to or from Finland, are included. By unit emissions we mean the amount of emissions emitted during operation of vehicles, measured in mass units and allocated to each passenger or tonne of freight transported over one kilometre (e.g. [g/tkm] tai [g/pkm]).
LIPASTO unit emission is an open-access database that can be used for free providing that appropriate referencing is used. Below is a general example of referencing, which can be further specified to reference to a given data table by its title.
This work is licensed under a Creative Commons Attribution 4.0 International License.
The method and level of emission calculations is largely determined by the calculation needs and what type of transport data is available. Typical examples of users of LIPASTO unit emissions include:
In the most typical case energy consumption and emissions can be calculated using the LIPASTO unit emission database as follows:
Data tables can be directly exported to Excel using the link in the right top corner of each data table.
Calculating passenger and tonne kilometres [pkm] / [tkm]
Passenger and tonne kilometres can be calculated in a number of ways depending on the accessible data. For best results, it is recommended that most detailed, accurate data available is used.
Vehicles of a different size (not found in the tables)
LIPASTO unit emission tables on these pages contain figures for only a limited range of vehicle types and vehicle sizes. However, because energy consumption and emissions are to certain extent linearly dependant on the mass of the vehicle, emissions can be estimated for vehicles of other sizes too. The equation for calculating emissions for a freight road vehicle of a different size is shown below. Two vehicle types need to be chosen: one that is heavier (mb) and one that is lighter (ma) than the vehicle (mx) whose emissions are being calculated (mb > mx > ma).
ex = ea + ((eb - ea) / (mb - ma)) x (mx - ma) ,
ex = emissions per vehicle kilometre of vehicle
Unit emission figures for partial loads
LIPASTO unit emission tables give figures for empty and fully loaded vehicles. Additionally, unit emission factor for a somewhat typical partial load is given. However, for more detailed results, the unit emission factor [g/tkm] for a given load [t] should be calculated using tabled unit emission figures for empty and full loaded vehicles. Emissions are practically linearly dependent on the mass of the vehicle and emissions from a vehicle at any load can be calculated as follows:
ex = (ea + ((eb - ea) / lc x lx)) / lx ,
ex = emissions per tonne kilometre with load lx [g/tkm]