Earlier quoted context omitted.
Why would electrification prevent track from warping due to heat from the sun?
cuts down carbon footpriunt which in the long run ll help cut down temperatures
Painting the sides of railroad rails white to reduce derailment
61–70 of 100 posts
Re: Painting the sides of railroad rails white to reduce derailment
#62This of course beeing the effect of seemlessly welded together rail with nowhere to go..
Indeed. Didn't they used to have expansion gaps?
Re: Painting the sides of railroad rails white to reduce derailment
#63"That’s huge. If you’re not fighting the sun’s heat, you dramatically reduce the risk of the rail shifting.” Am I misreading or does this say the opposite of what they meant?
Re: Painting the sides of railroad rails white to reduce derailment
#64Earlier quoted context omitted.
You are misreading. Basically the white paint is "fighting the sun's heat".
But that's backwards. I took it to mean the rails or the engineers are no longer fighting (coping with) heat input from the sun because the rail never receives that heat when it's reflected away by the paint.
Re: Painting the sides of railroad rails white to reduce derailment
#65I love a simple solution to billion dollar problems
Lots of major industrial specialty paint manufacturers and white labelers are publicly traded, owned by BR & VG.
Re: Painting the sides of railroad rails white to reduce derailment
#66Earlier quoted context omitted.
Yes, they're called "high-rail" or "road-rail" vehicles. They have rail wheels that can be lowered down to drive on tracks or raised up for road use.
And sometimes the axel is short (narrow), so the tires are on the rail. It's funny to see them on a standard road.
Re: Painting the sides of railroad rails white to reduce derailment
#67Practical Engineering already explained the correct solution to this problem: https://youtu.be/zqmOSMAtadc?si=UUlmnk9sI-leq0SV But of course, American infrastructure was built on the cheap, and is not maintained correctly. This is why we can't have nice things.
Re: Painting the sides of railroad rails white to reduce derailment
#68Practical Engineering already explained the correct solution to this problem: https://youtu.be/zqmOSMAtadc?si=UUlmnk9sI-leq0SV But of course, American infrastructure was built on the cheap, and is not maintained correctly. This is why we can't have nice things.
edit: I'm not sure anymore; I know most of the network is well maintained, but there could be large sections that are not, I'm not up to date on it.
Re: Painting the sides of railroad rails white to reduce derailment
#69Practical Engineering already explained the correct solution to this problem: https://youtu.be/zqmOSMAtadc?si=UUlmnk9sI-leq0SV But of course, American infrastructure was built on the cheap, and is not maintained correctly. This is why we can't have nice things.
> American [rail] was built on the cheap, and is not maintained correctly edit: I'm not sure anymore; I know most of the network is well maintained, but there could be large sections that are not, I'm not up to date on it.
2025 Infrastructure Report Card | ASCE
The 2025 grades range from a B in ports to a D in stormwater and transit. For the first time since 1998, no Report Card categories were rated D−. Among the 18 categories assessed, eight saw grade increases.
~ https://infrastructurereportcard.org/I dare say the next report card might not be so rosy.
Rail: B-
~ https://infrastructurereportcard.org/cat-item/rail-infrastru...
Re: Painting the sides of railroad rails white to reduce derailment
#70Earlier quoted context omitted.
Or just have the cyclists use fatter tyres.
That would also require fatter wheels. Which together have higher moment of inertia which makes for slower bikes (as more energy is required to get the wheels to the same speed). Not exactly what people want in a race.