Passing a red light might not be a big issue for this train driver, but in the event of an emergency, this one mistake could take lives.

Summer 2002 was no easy feat for the people working on the tube, making sure day to day workings of the underground ran as smoothly as possible. From strikes to repairs, to world records, join us as we get to know the unsung heroes of the Tube.

Subscribe to Spark for more amazing science, tech and engineering videos - https://goo.gl/LIrlur

Follow us on Facebook:   / sparkdocs  

Follow us on Instagram: https://www.instagram.com/spark_chann...

Content licensed from Espresso to Little Dot Studios. Produced by Mosaic Films Production. Any queries, please contact us at: [email protected]

#Spark #thetube #thetubeseries #sparktube #londonunderground #undergrounddocumentary #trains #traindocumentary #publictransport #publictransportdocumentary