Deisel freight trains are huge poluters with regard to particulate matter (PM). This actually causes cancer as opposed to CO2. Reducing PM without impacting fuel efficiency significantly is possible but requires investment. https://www.epa.nsw.gov.au/-/media/epa/corporate-site/resour... Same goes for diesel trucks / busses. This type of change throughout the world would really improve people’s lives immediately.
Trains are more efficient and less polluting than other transportation modes
31–40 of 334 posts
Re: Trains are more efficient and less polluting than other transportation modes
#32Earlier quoted context omitted.
I don't think anyone is "discovering" this. The US has prioritized other modes of transport because the US had priorities beyond "how clean it is".
Such as?
https://en.wikipedia.org/wiki/General_Motors_streetcar_consp...
Re: Trains are more efficient and less polluting than other transportation modes
#33Cycling is cleaner than any of them. So what?
Electrified rail is a viable alternative to suburb urban center commutes. Similar/better travel times are possible.
And in both cases rail is much more pleasant. E.g., ICE trains are way nicer airplanes -- anyone who thinks otherwise has never been on an ICE train or really enjoys being punished.
I also prefer DB trains to being a passenger in a car on an interstate. Trains, when well-done, are much quieter, a much smoother ride, have much more comfortable seats, and offer the option to stand up and stretch if you feel like it.
Cycling is never a replacement for either of those two use cases.
Re: Trains are more efficient and less polluting than other transportation modes
#34Roads are obviously worse but I’m not sure about airplanes. They’re measuring energy per passenger/km but I think ignoring the cost of building the infrastructure (the “get data” link is down). For roads and railways infrastructure investments are huge, both initial construction and then maintenance. Not only in dollars, in CO2 as well.
Also trains can derail, which takes the whole line out of action.
Re: Trains are more efficient and less polluting than other transportation modes
#35Most of the US freight rail system isn't electrified because the capital expenditures of doing so would be very large, and its return on investment in terms of direct monetary savings wouldn't materialize for many, many years. Since externalities aren't priced in, diesel-electric locomotives haul most trains in the US. More passenger rail isn't really being built in the US, because the capital expenditures of doing s…
Re: Trains are more efficient and less polluting than other transportation modes
#36This is rather obvious and has always been a major advantage of rail. The problem is the capital costs and real estate requirements of building the rail lines, especially when locations are far apart and there's already existing infrastructure that needs attention.
When you think of an American state with a growing population you can take the existing infrastructure as a given and plan for rail for your new capacity. Unless you are willing to say we're just not going to add transportation capacity for our new citizens, you face a choice of road, rail, or air. Rail is often a good choice. As for "far apart" this seems irrelevant. Ohio has a greater population density than does S…
Re: Trains are more efficient and less polluting than other transportation modes
#37Earlier quoted context omitted.
Individual independence and convenience were a goal in American culture the middle of the 20th century, until the externalities of that were understand. There's some famous interview - can't remember with who - about how at the time getting a car gave incredible freedom nobody had experienced before. It was a big part of how people saw the American dream in the last century, before the impact was understood.
And now, having a car is seen as impending your freedom, funnily enough.
Re: Trains are more efficient and less polluting than other transportation modes
#38Roads are obviously worse but I’m not sure about airplanes. They’re measuring energy per passenger/km but I think ignoring the cost of building the infrastructure (the “get data” link is down). For roads and railways infrastructure investments are huge, both initial construction and then maintenance. Not only in dollars, in CO2 as well.
Also trains can derail, which takes the whole line out of action.
Also, as someone who's been in an Amtrak derailment: The severity of the derailment matters a lot. Many are small, and trains can go right around them on the adjacent track. Also note that derailments are much less common in countries with more modern, higher quality rail infrastructure.
Re: Trains are more efficient and less polluting than other transportation modes
#39This is rather obvious and has always been a major advantage of rail. The problem is the capital costs and real estate requirements of building the rail lines, especially when locations are far apart and there's already existing infrastructure that needs attention.
Yes, such as roads, which can be replaced or built over with rail almost always. (Including light rail like trams.) The problem shared between both is lack of walkability. Not insoluble but requires more tunnels or overpasses.
I'm moving from NYC to Denver, and their new light rail system seems like such an upgrade from the car-congested streets above a sweaty slow subway.
Re: Trains are more efficient and less polluting than other transportation modes
#40Earlier quoted context omitted.
Individual independence and convenience were a goal in American culture the middle of the 20th century, until the externalities of that were understand. There's some famous interview - can't remember with who - about how at the time getting a car gave incredible freedom nobody had experienced before. It was a big part of how people saw the American dream in the last century, before the impact was understood.
And now, having a car is seen as impending your freedom, funnily enough.