GLASGOW Subway has trialled a new 5G network in underground tunnels in a move to "improve passenger experience". 

As part of the 5G RailNext project, researchers from the University of Strathclyde installed a "pop-up" network to allow for train-to-track connectivity between Buchanan Street and St Enoch stations.

The temporary installation saw the train carriage connecting to the trackside network.

An on-train Cisco Wi-Fi network was also used to connect users.  

There were also two 5G 'infotainment' service applications streaming AR adverting content which could be accessed by scanning a QR code. 

The final live trial took place earlier this year in March, which saw a dedicated train run the full circuit around Glasgow during normal passenger service and triallists using the infotainment applications on handsets and headset devices. 

The network allowed for users to buy goods and researchers say the trial "successfully demonstrated the live operation and potential of infotainment in an underground rail environment.

Principal and Vice-Chancellor of the University of Strathclyde, Professor Sir Jim McDonald, said: "The University of Strathclyde has vast experience of developing private 5G networks to create affordable connectivity solutions in both urban and rural locations, as well as hosting the Scotland 5G Centre in our Technology and Innovation Centre at Strathclyde.

"We are delighted to be building upon our strategic relationship with Cisco, and our other industry and UK Government partners, on this exciting transport project."

SPT Acting Chief Executive Valerie Davidson said: "SPT has been delighted to support this project in the Subway, and be part of this international collaboration to look at the viability of running 5G technology within our challenging Victorian tunnel system.

 "Following the success of the trial, we are now keen to look further at the potential benefits for our passengers to enhance their journey experience on the Subway. With the majority of Subway commuters now using a smartphone, there is increasing demand and a growing expectation on good connectivity to be accessible everywhere, especially as 5G continues to roll out.  

"There are also significant operational benefits to SPT, including the use of digital equipment for our maintenance teams and providing track-to-train connectivity."