PASSENGERS planning to travel by rail this weekend to Bristol Parkway and further West into South Wales are being advised to expect disruption while Network Rail carries out the final stage of a major signalling upgrade at Swindon as part of its Railway Upgrade Plan.

The new system at Swindon will replace equipment installed in the 1960s and '70s with the latest technology, paving the way for greater reliability and fewer delays for passengers.

It is also a vital part of Network Rail’s Railway Upgrade Plan which includes work to electrify the Great Western Main Line in preparation for the arrival of a new fleet of longer, faster, quieter and greener electric trains.

Paddy Gregg, Network Rail’s signalling project director, said: “This project is a vital part of our programme to re-signal the whole of the Great Western route, providing passengers with smoother journeys and fewer delays.

“The earlier stages of installing the new equipment went well, with all work completed on time. We are now entering the final stage of the project before control of the railway moves from the signal box at Swindon to the state-of-the-art Thames Valley signalling centre in Didcot.

“Our work to increase reliability, together with the ability of the new electric trains to reduce journey times and accommodate more passengers, will also help to drive economic growth across the Thames Valley, west and south west England.”

Around 250 members of Network Rail’s orange army will be working along 10 miles of railway over the weekend, carrying out final testing of the new equipment, commissioning a new telecoms system and removing signalling gantries that will no longer be needed.

This extensive work will require a temporary closure of part of the line. As a result, Paddington to South Wales services (via Bristol Parkway) will operate every hour but will divert via Bath, extending the normal journey time by approximately 30 minutes.

There will be no disruption to services between Bristol Temple Meads and London via Bath, and between Gloucester and Swindon.

Mr Gregg said: “Testing new signalling equipment is very complex and for safety reasons must be carried out when trains aren’t running.

"I’d like to thank passengers in advance for their patience and understanding while we complete this essential upgrade that will pave the way for greater reliability, fewer delays and the advantages electrification will bring to both passengers and those who live close to the railway.”