3 ms·

Do you have any articles or studies where you can see the CO2 output pr passengers with train on diesel vs electric (sourced from various hydrocarbons) vs air t

by tyfon 7y ago

Do you have any articles or studies where you can see the CO2 output pr passengers with train on diesel vs electric (sourced from various hydrocarbons) vs air travel? It would be interesting to see actual numbers and you seem to have studied this a bit.

maelito 7y ago
If you make a trip simulation in France you'll get the numbers from SNCF. E.g. try Trainline.eu. I couldn't find where they come from though.
Merrill 7y ago
See page 14, 15 of "Energy Efficiency in Air Transportation" by Arturo Benito, Gustavo Alonso. Table 2.3 gives MJ/pkm for the US. Fig 2.8 next page gives ranges of efficiency for both passenger and freight. https://books.google.com/books?id=jJGZDgAAQBAJ&printsec=frontcover&dq=energy+efficiency+by+transportation+mode&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjrt9nIucblAhWEpFkKHRfvBFgQ6AEwAHoECAUQAg#v=onepage&q=energy%20efficiency%20by%20transportation%20mode&f=false https://books.google.com/books?id=jJGZDgAAQBAJ&printsec=fron... Back when "peak oil" was a thing, I was in several discussions about what it would take to electrify the US transportation networks, both passenger and freight, but I have not worked in transportation planning. Hydrogen-fueled intercity buses will be much easier to implement than anything else, especially if they are autonomous to reduce driver costs.
- tyfon 7y ago
  Thanks for the source. It only lists raw energy use and not greenhouse gas emissions though. I'm a bit surprised since the tables I've seen have train emission at the very bottom, but most of what I have seen is from Europe but we run diesel trains here in Norway too (in the north) and the tracks are not straight at all!
NeedMoreTea 7y ago
https://www.eea.europa.eu/data-and-maps/daviz/specific-co2-emissions-per-passenger-3#tab-chart_1 https://www.eea.europa.eu/data-and-maps/daviz/specific-co2-e... Rail: 28 g/passenger km Air: 244 g/passenger km (road 101 g/passenger km) 2014 figures. Edit: Units !!
- itcrowd 7y ago
  The numbers are in g/passenger-km, not kg/passenger-km, thank God.

by tyfon 7y ago

maelito 7y ago

If you make a trip simulation in France you'll get the numbers from SNCF. E.g. try Trainline.eu. I couldn't find where they come from though.

Merrill 7y ago

See page 14, 15 of "Energy Efficiency in Air Transportation" by Arturo Benito, Gustavo Alonso. Table 2.3 gives MJ/pkm for the US. Fig 2.8 next page gives ranges of efficiency for both passenger and freight. https://books.google.com/books?id=jJGZDgAAQBAJ&printsec=frontcover&dq=energy+efficiency+by+transportation+mode&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjrt9nIucblAhWEpFkKHRfvBFgQ6AEwAHoECAUQAg#v=onepage&q=energy%20efficiency%20by%20transportation%20mode&f=false https://books.google.com/books?id=jJGZDgAAQBAJ&printsec=fron... Back when "peak oil" was a thing, I was in several discussions about what it would take to electrify the US transportation networks, both passenger and freight, but I have not worked in transportation planning. Hydrogen-fueled intercity buses will be much easier to implement than anything else, especially if they are autonomous to reduce driver costs.

tyfon 7y ago
Thanks for the source. It only lists raw energy use and not greenhouse gas emissions though. I'm a bit surprised since the tables I've seen have train emission at the very bottom, but most of what I have seen is from Europe but we run diesel trains here in Norway too (in the north) and the tracks are not straight at all!

NeedMoreTea 7y ago

https://www.eea.europa.eu/data-and-maps/daviz/specific-co2-emissions-per-passenger-3#tab-chart_1 https://www.eea.europa.eu/data-and-maps/daviz/specific-co2-e... Rail: 28 g/passenger km Air: 244 g/passenger km (road 101 g/passenger km) 2014 figures. Edit: Units !!

itcrowd 7y ago
The numbers are in g/passenger-km, not kg/passenger-km, thank God.