Tube-sized tunnel under London gets a power boost – with help from its own monorail

A 20 year old tube-train sized tunnel under north-west London is getting an upgrade to help it carry more electrons, and the engineers might be able to use a monorail to carry out the work.
Fata Automation monorail
The Elstree–St John’s Wood cable tunnel forms a key part of National Grid’s newly launched North West London Upgrade (NWLU), a programme to increase the amount of electricity that can be carried into London and provide connections for new developments.
As part of the