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Sweden and Switzerland, we are told, have some of the world's major electrified railway systems ----.
The main advantages of electric traction on railways
are that it is both pleasant and efficient. It brings the
removal of a smoke nuisance from tunnels and from
the vicinity of larger cities. Further, owing to high
acceleration, it is possible to provide a more frequent
and faster service on densely populated suburban
lines. The track capacity is improved by electrification
on mountainous lines because of increase of speed,
both up and down the gradient, generally using
electric forms of braking in the latter case. Some of the
major electrification schemes of the world, for
instance, those in Switzerland and Sweden, have
been largely dictated by the desire to operate the
railway system without dependence upon imported
fuel.