A carbon emission calculation and comparison is provided for every journey.
A list of comparative CO2 emissions of various modes of transport is shown. The CO2 data used is supplied by the Department for Environment Food and Rural Affairs (DEFRA).
How are estimated train journey CO2 emissions calculated?
We estimate the CO2 emissions for your rail journey as follows: Estimated CO2 Emissions per passenger = Distance * CO2 Conversion Factor 'Distance' is the total, estimated distance to be travelled on the National Rail network 'CO2 Conversion Factor' is a standard multiplier defined by the Department for Environment Food and Rural Affairs' (DEFRA) in their 'Guidelines to Defra's greenhouse gas (GHG) conversion factors for company reporting' document. The emission value presented is for the rail leg(s) of a journey only. Any journey legs taken by other modes of transport (e.g. Underground, Light Rail, Bus, Ferry, etc) are excluded from our calculations.
What assumptions do you make when calculating comparative CO2 Emission Data?
We provide indicative per traveller emission values for alternative modes of transport by stating the estimated CO2 emissions for journeys of identical distance (to the selected rail journey) taken by Bus and Coach, Car, Motorcycle or Plane.
What is included in the journey distance figure?
The journey distance is the total, estimated distance to be travelled on the National Rail network. Any journey legs taken by other modes of transport (e.g. Underground, Light Rail, Bus, Ferry, etc) are excluded from our calculations.
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