Expansion of mobile coverage across the London Underground network is a major step towards ensuring comprehensive connectivity is available where needed most.
At a glance
Who: Transport for London (TfL); Boldyn Network; EE.
What: TfL has announced it is deploying 4G mobile network infrastructure that will enable the Emergency Services Network (ESN) across the London Underground.
Why: It marks a major step towards ensuring comprehensive connectivity is available where it is needed most.
Where: Mobile coverage will be available across the 137 Tube, Docklands Light Railway and London Overground stations located ‘underground’.
Transport for London (TfL) has announced it is deploying 4G mobile network infrastructure that will enable the Emergency Services Network (ESN) across the London Underground.
The ESN programme is a critical national infrastructure initiative, designed to provide fast, secure and reliable critical communications for the UK’s emergency services. The expansion of mobile coverage across the London Underground network is a major step towards ensuring comprehensive connectivity is available where it is needed most.
According to TfL, the network upgrade is an important step in updating London’s public safety critical communications, enhancing response times and improving the quality of information available to emergency services personnel addressing live incidents.
Boldyn Network claims its delivery of infrastructure for ESN on the London Underground, in collaboration with EE, TfL, and the Home Office, will enable more resilient and reliable communications services in the future for thousands of first responders including police, fire and ambulance services. The British Transport Police is expected to be among the largest user of the network.
“Critically, ESN will ensure first responders can stay connected when it matters most, with access to the data and tools they need to respond quickly, safely and successfully”
Seamless mobile coverage across the 137 Tube, Docklands Light Railway and London Overground stations located ‘underground’, will provide first responders with immediate access to lifesaving data, imagery, live video and public safety information, supporting faster and more coordinated responses to live situations. This vital system will play a key role in enhancing safety and security for more than four million passengers that travel on London’s Tube network every day.
Rebecca Bissell, Transport for London’s director of technology products and operations, said: “Keeping our customers and London’s emergency services personnel safe while they travel and operate across our network is our top priority. That means ensuring frontliners are equipped with immediate access to lifesaving information to respond more effectively to emergency situations and keep London moving safely.”
Delivering these new capabilities within the London Underground presents engineering challenges because it is one of the UK’s most complex transport environments. Boldyn Networks was awarded a 20-year concession by TfL in 2021 to deliver mobile coverage across the entire London Underground network, bringing consistent, high-speed passenger connectivity across stations and tunnelled sections of the Tube.
“Access to connectivity for the emergency services can’t be compromised, especially in an environment as complex as the London Underground,” said Paul Osborne, chief commercial officer UK, Boldyn Networks.
“Critically, ESN will ensure first responders can stay connected when it matters most, with access to the data and tools they need to respond quickly, safely and successfully. We’re proud to continue our work with TfL and EE to help safeguard the millions of daily passengers across the London Underground network.”
In addition to the project to deliver mobile coverage across the Tube network, which remains on track for delivery by the end of 2026, Boldyn and TfL report that they are committed to scaling the capital’s fibre backbone and installing small-cell technology on street furniture.
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How will ESN 4G improve emergency responders' real-time data access underground?What stations and tunnel sections will receive mobile coverage first?How will Boldyn and EE ensure network resilience in complex underground environments?What capacity and bandwidth guarantees will ESN provide to emergency services?How will small-cell and fibre upgrades support passenger connectivity and ESN integration?