4 ms·
For intercity trains it doesn't matter what the propulsion method is though, since every train will make a lot of noise at speed. It's improved with aerodynamic
by Cthulhu_ 2y ago
For intercity trains it doesn't matter what the propulsion method is though, since every train will make a lot of noise at speed. It's improved with aerodynamics and better wheel / tracks, but ultimately noise will be an issue. Consider also cars where at speed the noise is not due to the engine, but to wheel / road noise.
- lukan 2y agoI live outside the city, so I know the difference in sound at high speed when they pass by. It makes a great difference. Combustion vs electric but also the manufacturing and damping of the wheels etc. Steelwheel on steel can be very silent.
- versteegen 2y agoYes, there are many components to train noise. I used to live by rails with a small incline, and the diesel locomotives made a loud low noise accelerating uphill from a station, while downhill the trains moved far faster and the engines were quite insignificant compared to noises due to speed: mainly the wheel noise and going over the expansion joints.
- patates 2y agohuh. rubber on asphalt is very loud on high speeds, could steel on steel really be quieter? (for downvoters: this is a real question, I'm not trying to suggest it can't be)
- lukan 2y agoYes, because rubber and asphalt do not really have a smooth surface unlike polished steel. So all the little bumbs give your car grip, but also cause friction, which is noise. One of the reasons, why trains are better suited in theory for long distance transport, than trucks. Little friction, so more energy efficient.
- cafard 2y agoWe lived fifty yards from a railroad embankment, just where it bridged a street. It was very loud.
- dkekenflxlf 2y agoyou see, why? ;-)