Tag 'source = https://www.youtube.com/watch?v=hhbWRcJ8mQY'

Select one ore more keys to display in the table:

• 1: gauge
• 1: workrules
• 1: source
• 1: layer
• 1: operator
• 1: frequency
• 1: voltage
• 1: ref
• 1: electrified
• 1: service
• 1: railway
• 1: opening_date
• 1: tunnel