3 ms·
probably flat, if only because it takes a lot of energy to move freight, which isn't usually particularly light, up and down hills.
by bobthepanda 4y ago
probably flat, if only because it takes a lot of energy to move freight, which isn't usually particularly light, up and down hills.
- mocko 4y agoAssuming regenerative braking you can get much of the energy back again when the train goes down a hill. But your point broadly stands - for reasons like limited wheel/rail adhesion heavy trains and steep gradients seldom go together.
- youngtaff 4y agoDepending on how the ‘stations’ work there maybe slopes up to them and then slopes down from them to help decelerate and accelerate the trains in and out of the stations Crossrail in London does this
- bobthepanda 4y agoRight, but that’s a lot different from following mountain slopes to maintain a constant depth.