Idea for additional non-friction Train braking

[DPWH]

What you could do is replaced the steel wheels with rubbber-tyred wheels and replace the rails with tarmac, and the vehicles would have very little difficulty stopping.

 

[hexagon789]

What you could do is replaced the steel wheels with rubbber-tyred wheels and replace the rails with tarmac, and the vehicles would have very little difficulty stopping.

And be extremely inefficient at high-speed.