Previews + Extras
London Super Tunnel Preview
S50 E1 - 27s
Thousands of engineers, technicians and workers race to build Europe’s biggest construction project–London’s new railroad, the Elizabeth Line.
How Engineers Soundproof a New Underground Train Track
S50 E1 - 2m 57s
Construction teams use springs to quiet the Elizabeth Line trains as they pass under a concert hall.
These Trains Take Over for Their Drivers to Cut Travel Time
S50 E1 - 2m 54s
To keep trains running on schedule, a new feature allows them to reverse direction and change tracks while the driver walks to the other end.
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