Controlling Trains - Network Rail engineering education (3 of 15)

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[train passing]

♪ pizzicato background music ♪

(Narrator) Britain's rail network transports

3 million passengers and

400,000 tonnes of freight a day.

With hundreds of trains using it

at any one time.

All this traffic presents us

with a safety challenge.

Trains are guided by rails,

so it's impossible for them to swerve

or pull over.

Trains are heavy, can't stop quickly

and frequently operate at speeds

which do not enable them to halt

within sighting distance of the driver.

Under these circumstances,

one might assume that

trains are prone to collision.

In fact, rail is the

safest mode of transport in Britain.