Trains (whether its a subway/tube or a regular locomotive) travel very quick, and when approaching a station, they need to slow down to a stop.
Why not have the station be built slightly elevated from the tracks? so as the train approaches, it has to climb an upward slope (and therefore trade kinetic energy for potential energy)?
And then when it leaves the station, it can more quickly accelerate and gain up to its target speed? Wouldn’t this be more efficient?
​
In: Engineering
They sometimes are.
From [Wikipedia:](https://en.wikipedia.org/wiki/London_Underground_infrastructure)
>Many of the central London deep-tube line stations, such as those on the Central and Piccadilly lines, are higher than the running lines to help with deceleration when arriving and acceleration when departing.
There are limits to the slopes tracks can have though and those tend to be very light. Trains and trams etc aren’t good at going up even slight inclines compared to cars. So there is only so much this sloping can do.
Latest Answers