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What evidence other than your anecdotal evidence that a lightweight passenger train creates less noises then a heavy load freight? I am sure there are some diff

What evidence other than your anecdotal evidence that a lightweight passenger train creates less noises then a heavy load freight? I am sure there are some differences in regards to design and age but wouldn't you imagine the majority of the difference is in weight? Passenger trains weigh nothing.

lukan 2y ago
"Passenger trains weigh nothing." A bit more than that. And old freight trains are loud, even when empty. Another example, there is a small local passenger train with a combustion engine. Very loud, whether slow or fast. Unlike the mentioned modern electric one from Alstom, who are so silent, that they are dangerous when they pass by a train station and you are too close to the track. You only notice them moments before they wooosh by. And if you want more than my anecdota of everyday experience, there are tons of youtube videos of different trains to see that trains can be loud, if that was not a manufacturing concern, or silent. Usually, the older the louder.
- infecto 2y ago
  Sorry I don't do youtube anecdotes. I think you missed my point, my fault. Passenger trains and individual train cars do indeed weigh considerably less than fully loaded freight. So yes....its not nothing but they are easily double the weight. Leading to my point that when you are 2.5x+ the weight, its a different engineering problem along with an issue of economics. Freight cars are not loud only because of age but also because of weight and the challenges on both engineering and cost to remedy it. It is hard to compare a passenger train with a freight train, entirely different beasts.
  - lukan 2y ago
    "It is hard to compare a passenger train with a freight train, entirely different beasts." Hm, for me they are quite simimlar. Just one was build to be more silent mainly for passenger comfort (it is inded nicer in the modern silent ones) and the other for most weight. But you could optimize freight trains for silence as well. All the loud metal scratching noises for example are avoidable, even with more weight. The ones I am talking about were just not build with noise in mind.
    - infecto 2y ago
      Glad you agree with me then. It’s not about just buying new trains.
popol12 2y ago
Just adding my own data: I’ve been living next to a train station for a few years now, I’d say that freight is insanely more noisy than passenger trains, 100% of the time. I live in France btw, so it’s all electric trains.
- infecto 2y ago
  No argument there. Freight is not designed for comfort or sound.

lukan 2y ago

"Passenger trains weigh nothing." A bit more than that. And old freight trains are loud, even when empty. Another example, there is a small local passenger train with a combustion engine. Very loud, whether slow or fast. Unlike the mentioned modern electric one from Alstom, who are so silent, that they are dangerous when they pass by a train station and you are too close to the track. You only notice them moments before they wooosh by. And if you want more than my anecdota of everyday experience, there are tons of youtube videos of different trains to see that trains can be loud, if that was not a manufacturing concern, or silent. Usually, the older the louder.

infecto 2y ago
Sorry I don't do youtube anecdotes. I think you missed my point, my fault. Passenger trains and individual train cars do indeed weigh considerably less than fully loaded freight. So yes....its not nothing but they are easily double the weight. Leading to my point that when you are 2.5x+ the weight, its a different engineering problem along with an issue of economics. Freight cars are not loud only because of age but also because of weight and the challenges on both engineering and cost to remedy it. It is hard to compare a passenger train with a freight train, entirely different beasts.
- lukan 2y ago
  "It is hard to compare a passenger train with a freight train, entirely different beasts." Hm, for me they are quite simimlar. Just one was build to be more silent mainly for passenger comfort (it is inded nicer in the modern silent ones) and the other for most weight. But you could optimize freight trains for silence as well. All the loud metal scratching noises for example are avoidable, even with more weight. The ones I am talking about were just not build with noise in mind.
  - infecto 2y ago
    Glad you agree with me then. It’s not about just buying new trains.

popol12 2y ago

Just adding my own data: I’ve been living next to a train station for a few years now, I’d say that freight is insanely more noisy than passenger trains, 100% of the time. I live in France btw, so it’s all electric trains.

infecto 2y ago
No argument there. Freight is not designed for comfort or sound.