August upgrades: in numbers

What does it take to deliver £84m of investment in more than 400 railway projects across Britain?

A 9,600-strong team worked around the clock over the August bank holiday to carry out essential upgrades and improvements for passengers and freight operators.

These works continued at North Wembley into September - we handed back London Euston station on 3 September following the replacement of a vital junction that will enable more reliable services.

The programme was just part of Network Rail’s five-year railway upgrade plan - a multi-billion-pound investment in the rail network which will improve passenger journeys in the months and years ahead.

Here’s what it required across the network:

Sleepers support the railway lines. Today more than three-quarters of track sits on concrete sleepers.

Our engineering trains do a range of jobs, from installing new track to distributing ballast.

Track renewal system (TRS) trains operate in a conveyor process, renewing the track as they move along it.

Kirow cranes help us install things like track. Our largest has a 125-tonne capacity.

Ballast cleaning is an essential part of railway maintenance that started in Britain in the 1950s. It allows trains to run faster.

We couldn't carry out much of our maintenance without wagons to transport huge amounts of new ballast and take away the old (spoil).